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Finding the Fourth Proportional to 661,641.90, 924,301.20 and 661,641.90

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Solution

The fourth proportional to 661,641.90, 924,301.20 and 661,641.90 is: 924,301.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,641.90 : 924,301.20 = 661,641.90 : x
  2. Step 2: Convert to fraction form
    661,641.90/924,301.20 = 661,641.90/x
  3. Step 3: Cross multiply
    661,641.90x = 924,301.20 × 661,641.90
  4. Step 4: Simplify right side
    661,641.90x = 611,556,402,140.28
  5. Step 5: Solve for x
    x = 611,556,402,140.28/661,641.90
  6. Step 6: Final answer
    x = 924,301.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.