Home / 623,867.60-935,801.40-308,259.20

Finding the Fourth Proportional to 623,867.60, 935,801.40 and 308,259.20

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Solution

The fourth proportional to 623,867.60, 935,801.40 and 308,259.20 is: 462,388.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,867.60 : 935,801.40 = 308,259.20 : x
  2. Step 2: Convert to fraction form
    623,867.60/935,801.40 = 308,259.20/x
  3. Step 3: Cross multiply
    623,867.60x = 935,801.40 × 308,259.20
  4. Step 4: Simplify right side
    623,867.60x = 288,469,390,922.88
  5. Step 5: Solve for x
    x = 288,469,390,922.88/623,867.60
  6. Step 6: Final answer
    x = 462,388.80

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.