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Finding the Fourth Proportional to 519,882.60, 779,823.90 and 164,924.40

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Solution

The fourth proportional to 519,882.60, 779,823.90 and 164,924.40 is: 247,386.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,882.60 : 779,823.90 = 164,924.40 : x
  2. Step 2: Convert to fraction form
    519,882.60/779,823.90 = 164,924.40/x
  3. Step 3: Cross multiply
    519,882.60x = 779,823.90 × 164,924.40
  4. Step 4: Simplify right side
    519,882.60x = 128,611,988,813.16
  5. Step 5: Solve for x
    x = 128,611,988,813.16/519,882.60
  6. Step 6: Final answer
    x = 247,386.60

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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.