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Finding the Fourth Proportional to 616,418.74, 924,814.94 and 436,851.35

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Solution

The fourth proportional to 616,418.74, 924,814.94 and 436,851.35 is: 655,409.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,418.74 : 924,814.94 = 436,851.35 : x
  2. Step 2: Convert to fraction form
    616,418.74/924,814.94 = 436,851.35/x
  3. Step 3: Cross multiply
    616,418.74x = 924,814.94 × 436,851.35
  4. Step 4: Simplify right side
    616,418.74x = 404,006,655,039.17
  5. Step 5: Solve for x
    x = 404,006,655,039.17/616,418.74
  6. Step 6: Final answer
    x = 655,409.43

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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.