Home / 440,014.75-607,220.40-238,810.75

Finding the Fourth Proportional to 440,014.75, 607,220.40 and 238,810.75

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Solution

The fourth proportional to 440,014.75, 607,220.40 and 238,810.75 is: 329,558.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,014.75 : 607,220.40 = 238,810.75 : x
  2. Step 2: Convert to fraction form
    440,014.75/607,220.40 = 238,810.75/x
  3. Step 3: Cross multiply
    440,014.75x = 607,220.40 × 238,810.75
  4. Step 4: Simplify right side
    440,014.75x = 145,010,759,139.30
  5. Step 5: Solve for x
    x = 145,010,759,139.30/440,014.75
  6. Step 6: Final answer
    x = 329,558.86

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Half scale
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Double scale
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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.