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Finding the Fourth Proportional to 1,156,827.60, 1,739,388.60 and 974,350.80

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Solution

The fourth proportional to 1,156,827.60, 1,739,388.60 and 974,350.80 is: 1,465,019.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,156,827.60 : 1,739,388.60 = 974,350.80 : x
  2. Step 2: Convert to fraction form
    1,156,827.60/1,739,388.60 = 974,350.80/x
  3. Step 3: Cross multiply
    1,156,827.60x = 1,739,388.60 × 974,350.80
  4. Step 4: Simplify right side
    1,156,827.60x = 1,694,774,673,920.88
  5. Step 5: Solve for x
    x = 1,694,774,673,920.88/1,156,827.60
  6. Step 6: Final answer
    x = 1,465,019.22

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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.