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Finding the Fourth Proportional to 924,876, 1,276,328.88 and 500,940

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Solution

The fourth proportional to 924,876, 1,276,328.88 and 500,940 is: 691,297.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    924,876 : 1,276,328.88 = 500,940 : x
  2. Step 2: Convert to fraction form
    924,876/1,276,328.88 = 500,940/x
  3. Step 3: Cross multiply
    924,876x = 1,276,328.88 × 500,940
  4. Step 4: Simplify right side
    924,876x = 639,364,189,147.20
  5. Step 5: Solve for x
    x = 639,364,189,147.20/924,876
  6. Step 6: Final answer
    x = 691,297.20

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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.