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Finding the Fourth Proportional to 617,788.19, 852,649.71 and 424,036.73

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Solution

The fourth proportional to 617,788.19, 852,649.71 and 424,036.73 is: 585,240.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,788.19 : 852,649.71 = 424,036.73 : x
  2. Step 2: Convert to fraction form
    617,788.19/852,649.71 = 424,036.73/x
  3. Step 3: Cross multiply
    617,788.19x = 852,649.71 × 424,036.73
  4. Step 4: Simplify right side
    617,788.19x = 361,554,792,207.90
  5. Step 5: Solve for x
    x = 361,554,792,207.90/617,788.19
  6. Step 6: Final answer
    x = 585,240.70

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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.