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Finding the Fourth Proportional to 546,538.68, 814,374.95 and 486,916.20

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Solution

The fourth proportional to 546,538.68, 814,374.95 and 486,916.20 is: 725,533.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,538.68 : 814,374.95 = 486,916.20 : x
  2. Step 2: Convert to fraction form
    546,538.68/814,374.95 = 486,916.20/x
  3. Step 3: Cross multiply
    546,538.68x = 814,374.95 × 486,916.20
  4. Step 4: Simplify right side
    546,538.68x = 396,532,353,594.61
  5. Step 5: Solve for x
    x = 396,532,353,594.61/546,538.68
  6. Step 6: Final answer
    x = 725,533.92

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.