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Finding the Fourth Proportional to 624,615.06, 861,968.59 and 338,134.93

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Solution

The fourth proportional to 624,615.06, 861,968.59 and 338,134.93 is: 466,626.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,615.06 : 861,968.59 = 338,134.93 : x
  2. Step 2: Convert to fraction form
    624,615.06/861,968.59 = 338,134.93/x
  3. Step 3: Cross multiply
    624,615.06x = 861,968.59 × 338,134.93
  4. Step 4: Simplify right side
    624,615.06x = 291,461,688,841.85
  5. Step 5: Solve for x
    x = 291,461,688,841.85/624,615.06
  6. Step 6: Final answer
    x = 466,626.10

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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.