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Finding the Fourth Proportional to 519,934.60, 779,901.90 and 367,719.40

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Solution

The fourth proportional to 519,934.60, 779,901.90 and 367,719.40 is: 551,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,934.60 : 779,901.90 = 367,719.40 : x
  2. Step 2: Convert to fraction form
    519,934.60/779,901.90 = 367,719.40/x
  3. Step 3: Cross multiply
    519,934.60x = 779,901.90 × 367,719.40
  4. Step 4: Simplify right side
    519,934.60x = 286,785,058,726.86
  5. Step 5: Solve for x
    x = 286,785,058,726.86/519,934.60
  6. Step 6: Final answer
    x = 551,579.10

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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.