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Finding the Fourth Proportional to 571,230.40, 856,845.60 and 291,294.40

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Solution

The fourth proportional to 571,230.40, 856,845.60 and 291,294.40 is: 436,941.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,230.40 : 856,845.60 = 291,294.40 : x
  2. Step 2: Convert to fraction form
    571,230.40/856,845.60 = 291,294.40/x
  3. Step 3: Cross multiply
    571,230.40x = 856,845.60 × 291,294.40
  4. Step 4: Simplify right side
    571,230.40x = 249,594,324,944.64
  5. Step 5: Solve for x
    x = 249,594,324,944.64/571,230.40
  6. Step 6: Final answer
    x = 436,941.60

Related Problems

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Half scale
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Double scale
Find fourth proportional to 571,231.40, 856,847.10 and 291,295.40
Similar ratio
Find fourth proportional to 856,845.60, 1,285,268.40 and 436,941.60
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.