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Finding the Fourth Proportional to 876,806.88, 1,209,863.72 and 532,463.72

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Solution

The fourth proportional to 876,806.88, 1,209,863.72 and 532,463.72 is: 734,721.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,806.88 : 1,209,863.72 = 532,463.72 : x
  2. Step 2: Convert to fraction form
    876,806.88/1,209,863.72 = 532,463.72/x
  3. Step 3: Cross multiply
    876,806.88x = 1,209,863.72 × 532,463.72
  4. Step 4: Simplify right side
    876,806.88x = 644,208,537,044.24
  5. Step 5: Solve for x
    x = 644,208,537,044.24/876,806.88
  6. Step 6: Final answer
    x = 734,721.12

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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.