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Finding the Fourth Proportional to 604,906.60, 907,359.90 and 539,588.20

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Solution

The fourth proportional to 604,906.60, 907,359.90 and 539,588.20 is: 809,382.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,906.60 : 907,359.90 = 539,588.20 : x
  2. Step 2: Convert to fraction form
    604,906.60/907,359.90 = 539,588.20/x
  3. Step 3: Cross multiply
    604,906.60x = 907,359.90 × 539,588.20
  4. Step 4: Simplify right side
    604,906.60x = 489,600,695,193.18
  5. Step 5: Solve for x
    x = 489,600,695,193.18/604,906.60
  6. Step 6: Final answer
    x = 809,382.30

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Double scale
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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.