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Finding the Fourth Proportional to 417,817.60, 626,995.20 and 230,963.20

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Solution

The fourth proportional to 417,817.60, 626,995.20 and 230,963.20 is: 346,593.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,817.60 : 626,995.20 = 230,963.20 : x
  2. Step 2: Convert to fraction form
    417,817.60/626,995.20 = 230,963.20/x
  3. Step 3: Cross multiply
    417,817.60x = 626,995.20 × 230,963.20
  4. Step 4: Simplify right side
    417,817.60x = 144,812,817,776.64
  5. Step 5: Solve for x
    x = 144,812,817,776.64/417,817.60
  6. Step 6: Final answer
    x = 346,593.39

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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.