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Finding the Fourth Proportional to 623,991.60, 935,987.40 and 599,497.20

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Solution

The fourth proportional to 623,991.60, 935,987.40 and 599,497.20 is: 899,245.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,991.60 : 935,987.40 = 599,497.20 : x
  2. Step 2: Convert to fraction form
    623,991.60/935,987.40 = 599,497.20/x
  3. Step 3: Cross multiply
    623,991.60x = 935,987.40 × 599,497.20
  4. Step 4: Simplify right side
    623,991.60x = 561,121,825,535.28
  5. Step 5: Solve for x
    x = 561,121,825,535.28/623,991.60
  6. Step 6: Final answer
    x = 899,245.80

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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.