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Finding the Fourth Proportional to 924,483.88, 1,384,358.28 and 639,780.22

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Solution

The fourth proportional to 924,483.88, 1,384,358.28 and 639,780.22 is: 958,031.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    924,483.88 : 1,384,358.28 = 639,780.22 : x
  2. Step 2: Convert to fraction form
    924,483.88/1,384,358.28 = 639,780.22/x
  3. Step 3: Cross multiply
    924,483.88x = 1,384,358.28 × 639,780.22
  4. Step 4: Simplify right side
    924,483.88x = 885,685,044,937.22
  5. Step 5: Solve for x
    x = 885,685,044,937.22/924,483.88
  6. Step 6: Final answer
    x = 958,031.90

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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.