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Finding the Fourth Proportional to 440,617.60, 608,044.76 and 239,412.16

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Solution

The fourth proportional to 440,617.60, 608,044.76 and 239,412.16 is: 330,384.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,617.60 : 608,044.76 = 239,412.16 : x
  2. Step 2: Convert to fraction form
    440,617.60/608,044.76 = 239,412.16/x
  3. Step 3: Cross multiply
    440,617.60x = 608,044.76 × 239,412.16
  4. Step 4: Simplify right side
    440,617.60x = 145,573,309,368.28
  5. Step 5: Solve for x
    x = 145,573,309,368.28/440,617.60
  6. Step 6: Final answer
    x = 330,384.69

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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.