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Finding the Fourth Proportional to 713,777.68, 1,070,724.76 and 358,608.40

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Solution

The fourth proportional to 713,777.68, 1,070,724.76 and 358,608.40 is: 537,941.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,777.68 : 1,070,724.76 = 358,608.40 : x
  2. Step 2: Convert to fraction form
    713,777.68/1,070,724.76 = 358,608.40/x
  3. Step 3: Cross multiply
    713,777.68x = 1,070,724.76 × 358,608.40
  4. Step 4: Simplify right side
    713,777.68x = 383,970,893,023.98
  5. Step 5: Solve for x
    x = 383,970,893,023.98/713,777.68
  6. Step 6: Final answer
    x = 537,941.86

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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.