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Finding the Fourth Proportional to 684,862.00, 945,489.65 and 412,998.76

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Solution

The fourth proportional to 684,862.00, 945,489.65 and 412,998.76 is: 570,167.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,862.00 : 945,489.65 = 412,998.76 : x
  2. Step 2: Convert to fraction form
    684,862.00/945,489.65 = 412,998.76/x
  3. Step 3: Cross multiply
    684,862.00x = 945,489.65 × 412,998.76
  4. Step 4: Simplify right side
    684,862.00x = 390,486,052,159.70
  5. Step 5: Solve for x
    x = 390,486,052,159.70/684,862.00
  6. Step 6: Final answer
    x = 570,167.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.