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Finding the Fourth Proportional to 544,074.30, 816,111.45 and 521,037.90

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Solution

The fourth proportional to 544,074.30, 816,111.45 and 521,037.90 is: 781,556.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,074.30 : 816,111.45 = 521,037.90 : x
  2. Step 2: Convert to fraction form
    544,074.30/816,111.45 = 521,037.90/x
  3. Step 3: Cross multiply
    544,074.30x = 816,111.45 × 521,037.90
  4. Step 4: Simplify right side
    544,074.30x = 425,224,996,073.96
  5. Step 5: Solve for x
    x = 425,224,996,073.96/544,074.30
  6. Step 6: Final answer
    x = 781,556.85

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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.