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Finding the Fourth Proportional to 876,874.83, 1,209,752.71 and 532,580.89

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Solution

The fourth proportional to 876,874.83, 1,209,752.71 and 532,580.89 is: 734,758.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,874.83 : 1,209,752.71 = 532,580.89 : x
  2. Step 2: Convert to fraction form
    876,874.83/1,209,752.71 = 532,580.89/x
  3. Step 3: Cross multiply
    876,874.83x = 1,209,752.71 × 532,580.89
  4. Step 4: Simplify right side
    876,874.83x = 644,291,174,971.71
  5. Step 5: Solve for x
    x = 644,291,174,971.71/876,874.83
  6. Step 6: Final answer
    x = 734,758.43

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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.