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Finding the Fourth Proportional to 556,892.20, 834,900.90 and 307,574.20

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Solution

The fourth proportional to 556,892.20, 834,900.90 and 307,574.20 is: 461,119.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,892.20 : 834,900.90 = 307,574.20 : x
  2. Step 2: Convert to fraction form
    556,892.20/834,900.90 = 307,574.20/x
  3. Step 3: Cross multiply
    556,892.20x = 834,900.90 × 307,574.20
  4. Step 4: Simplify right side
    556,892.20x = 256,793,976,396.78
  5. Step 5: Solve for x
    x = 256,793,976,396.78/556,892.20
  6. Step 6: Final answer
    x = 461,119.72

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1.5x scale

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.