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Finding the Fourth Proportional to 495,562.60, 683,799.78 and 291,716.20

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Solution

The fourth proportional to 495,562.60, 683,799.78 and 291,716.20 is: 402,523.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,562.60 : 683,799.78 = 291,716.20 : x
  2. Step 2: Convert to fraction form
    495,562.60/683,799.78 = 291,716.20/x
  3. Step 3: Cross multiply
    495,562.60x = 683,799.78 × 291,716.20
  4. Step 4: Simplify right side
    495,562.60x = 199,475,473,382.44
  5. Step 5: Solve for x
    x = 199,475,473,382.44/495,562.60
  6. Step 6: Final answer
    x = 402,523.26

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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.