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Finding the Fourth Proportional to 664,323.40, 996,485.10 and 547,683.40

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Solution

The fourth proportional to 664,323.40, 996,485.10 and 547,683.40 is: 821,525.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,323.40 : 996,485.10 = 547,683.40 : x
  2. Step 2: Convert to fraction form
    664,323.40/996,485.10 = 547,683.40/x
  3. Step 3: Cross multiply
    664,323.40x = 996,485.10 × 547,683.40
  4. Step 4: Simplify right side
    664,323.40x = 545,758,347,617.34
  5. Step 5: Solve for x
    x = 545,758,347,617.34/664,323.40
  6. Step 6: Final answer
    x = 821,525.10

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Half scale
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Double scale
Find fourth proportional to 664,324.40, 996,486.60 and 547,684.40
Similar ratio
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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.