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Finding the Fourth Proportional to 976,722.60, 1,465,302.60 and 377,630.40

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Solution

The fourth proportional to 976,722.60, 1,465,302.60 and 377,630.40 is: 566,530.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,722.60 : 1,465,302.60 = 377,630.40 : x
  2. Step 2: Convert to fraction form
    976,722.60/1,465,302.60 = 377,630.40/x
  3. Step 3: Cross multiply
    976,722.60x = 1,465,302.60 × 377,630.40
  4. Step 4: Simplify right side
    976,722.60x = 553,342,806,959.04
  5. Step 5: Solve for x
    x = 553,342,806,959.04/976,722.60
  6. Step 6: Final answer
    x = 566,530.16

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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.