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Finding the Fourth Proportional to 539,095.20, 808,642.80 and 504,103.20

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Solution

The fourth proportional to 539,095.20, 808,642.80 and 504,103.20 is: 756,154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,095.20 : 808,642.80 = 504,103.20 : x
  2. Step 2: Convert to fraction form
    539,095.20/808,642.80 = 504,103.20/x
  3. Step 3: Cross multiply
    539,095.20x = 808,642.80 × 504,103.20
  4. Step 4: Simplify right side
    539,095.20x = 407,639,423,136.96
  5. Step 5: Solve for x
    x = 407,639,423,136.96/539,095.20
  6. Step 6: Final answer
    x = 756,154.80

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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.