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Finding the Fourth Proportional to 847,780.88, 1,169,950.89 and 460,603.97

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Solution

The fourth proportional to 847,780.88, 1,169,950.89 and 460,603.97 is: 635,640.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,780.88 : 1,169,950.89 = 460,603.97 : x
  2. Step 2: Convert to fraction form
    847,780.88/1,169,950.89 = 460,603.97/x
  3. Step 3: Cross multiply
    847,780.88x = 1,169,950.89 × 460,603.97
  4. Step 4: Simplify right side
    847,780.88x = 538,884,024,639.03
  5. Step 5: Solve for x
    x = 538,884,024,639.03/847,780.88
  6. Step 6: Final answer
    x = 635,640.69

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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.