Home / 519,867.60-779,801.40-239,931.60

Finding the Fourth Proportional to 519,867.60, 779,801.40 and 239,931.60

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Solution

The fourth proportional to 519,867.60, 779,801.40 and 239,931.60 is: 359,897.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,867.60 : 779,801.40 = 239,931.60 : x
  2. Step 2: Convert to fraction form
    519,867.60/779,801.40 = 239,931.60/x
  3. Step 3: Cross multiply
    519,867.60x = 779,801.40 × 239,931.60
  4. Step 4: Simplify right side
    519,867.60x = 187,098,997,584.24
  5. Step 5: Solve for x
    x = 187,098,997,584.24/519,867.60
  6. Step 6: Final answer
    x = 359,897.40

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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.