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Finding the Fourth Proportional to 862,813.60, 1,190,686.72 and 500,452

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Solution

The fourth proportional to 862,813.60, 1,190,686.72 and 500,452 is: 690,626.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,813.60 : 1,190,686.72 = 500,452 : x
  2. Step 2: Convert to fraction form
    862,813.60/1,190,686.72 = 500,452/x
  3. Step 3: Cross multiply
    862,813.60x = 1,190,686.72 × 500,452
  4. Step 4: Simplify right side
    862,813.60x = 595,881,550,397.44
  5. Step 5: Solve for x
    x = 595,881,550,397.44/862,813.60
  6. Step 6: Final answer
    x = 690,626.05

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1.5x scale

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.