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Finding the Fourth Proportional to 528,038.40, 792,057.60 and 291,842.40

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Solution

The fourth proportional to 528,038.40, 792,057.60 and 291,842.40 is: 437,763.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,038.40 : 792,057.60 = 291,842.40 : x
  2. Step 2: Convert to fraction form
    528,038.40/792,057.60 = 291,842.40/x
  3. Step 3: Cross multiply
    528,038.40x = 792,057.60 × 291,842.40
  4. Step 4: Simplify right side
    528,038.40x = 231,155,990,922.24
  5. Step 5: Solve for x
    x = 231,155,990,922.24/528,038.40
  6. Step 6: Final answer
    x = 437,763.60

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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.