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Finding the Fourth Proportional to 440,615.64, 608,053.20 and 239,411.64

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Solution

The fourth proportional to 440,615.64, 608,053.20 and 239,411.64 is: 330,390.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,615.64 : 608,053.20 = 239,411.64 : x
  2. Step 2: Convert to fraction form
    440,615.64/608,053.20 = 239,411.64/x
  3. Step 3: Cross multiply
    440,615.64x = 608,053.20 × 239,411.64
  4. Step 4: Simplify right side
    440,615.64x = 145,575,013,819.25
  5. Step 5: Solve for x
    x = 145,575,013,819.25/440,615.64
  6. Step 6: Final answer
    x = 330,390.03

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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.