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Finding the Fourth Proportional to 706,190.87, 974,539.35 and 400,324.95

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Solution

The fourth proportional to 706,190.87, 974,539.35 and 400,324.95 is: 552,446.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,190.87 : 974,539.35 = 400,324.95 : x
  2. Step 2: Convert to fraction form
    706,190.87/974,539.35 = 400,324.95/x
  3. Step 3: Cross multiply
    706,190.87x = 974,539.35 × 400,324.95
  4. Step 4: Simplify right side
    706,190.87x = 390,132,416,561.78
  5. Step 5: Solve for x
    x = 390,132,416,561.78/706,190.87
  6. Step 6: Final answer
    x = 552,446.13

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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.