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Finding the Fourth Proportional to 440,000.25, 607,200.35 and 238,796.25

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Solution

The fourth proportional to 440,000.25, 607,200.35 and 238,796.25 is: 329,538.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,000.25 : 607,200.35 = 238,796.25 : x
  2. Step 2: Convert to fraction form
    440,000.25/607,200.35 = 238,796.25/x
  3. Step 3: Cross multiply
    440,000.25x = 607,200.35 × 238,796.25
  4. Step 4: Simplify right side
    440,000.25x = 144,997,165,384.71
  5. Step 5: Solve for x
    x = 144,997,165,384.71/440,000.25
  6. Step 6: Final answer
    x = 329,538.83

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Half scale
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Double scale
Find fourth proportional to 440,001.25, 607,201.73 and 238,797.25
Similar ratio
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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.