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Finding the Fourth Proportional to 555,856.90, 834,562.95 and 345,904.90

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Solution

The fourth proportional to 555,856.90, 834,562.95 and 345,904.90 is: 519,341.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,856.90 : 834,562.95 = 345,904.90 : x
  2. Step 2: Convert to fraction form
    555,856.90/834,562.95 = 345,904.90/x
  3. Step 3: Cross multiply
    555,856.90x = 834,562.95 × 345,904.90
  4. Step 4: Simplify right side
    555,856.90x = 288,679,413,763.46
  5. Step 5: Solve for x
    x = 288,679,413,763.46/555,856.90
  6. Step 6: Final answer
    x = 519,341.24

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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.