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Finding the Fourth Proportional to 539,046.20, 808,569.30 and 329,094.20

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Solution

The fourth proportional to 539,046.20, 808,569.30 and 329,094.20 is: 493,641.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,046.20 : 808,569.30 = 329,094.20 : x
  2. Step 2: Convert to fraction form
    539,046.20/808,569.30 = 329,094.20/x
  3. Step 3: Cross multiply
    539,046.20x = 808,569.30 × 329,094.20
  4. Step 4: Simplify right side
    539,046.20x = 266,095,466,928.06
  5. Step 5: Solve for x
    x = 266,095,466,928.06/539,046.20
  6. Step 6: Final answer
    x = 493,641.30

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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.