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Finding the Fourth Proportional to 440,858.16, 608,384.88 and 239,654.16

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Solution

The fourth proportional to 440,858.16, 608,384.88 and 239,654.16 is: 330,723.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,858.16 : 608,384.88 = 239,654.16 : x
  2. Step 2: Convert to fraction form
    440,858.16/608,384.88 = 239,654.16/x
  3. Step 3: Cross multiply
    440,858.16x = 608,384.88 × 239,654.16
  4. Step 4: Simplify right side
    440,858.16x = 145,801,967,373.10
  5. Step 5: Solve for x
    x = 145,801,967,373.10/440,858.16
  6. Step 6: Final answer
    x = 330,723.08

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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.