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Finding the Fourth Proportional to 608,838.48, 840,432.60 and 545,065.44

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Solution

The fourth proportional to 608,838.48, 840,432.60 and 545,065.44 is: 752,401.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,838.48 : 840,432.60 = 545,065.44 : x
  2. Step 2: Convert to fraction form
    608,838.48/840,432.60 = 545,065.44/x
  3. Step 3: Cross multiply
    608,838.48x = 840,432.60 × 545,065.44
  4. Step 4: Simplify right side
    608,838.48x = 458,090,764,909.34
  5. Step 5: Solve for x
    x = 458,090,764,909.34/608,838.48
  6. Step 6: Final answer
    x = 752,401.14

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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.