Home / 619,748.10-929,622.15-519,364.80

Finding the Fourth Proportional to 619,748.10, 929,622.15 and 519,364.80

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Solution

The fourth proportional to 619,748.10, 929,622.15 and 519,364.80 is: 779,047.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,748.10 : 929,622.15 = 519,364.80 : x
  2. Step 2: Convert to fraction form
    619,748.10/929,622.15 = 519,364.80/x
  3. Step 3: Cross multiply
    619,748.10x = 929,622.15 × 519,364.80
  4. Step 4: Simplify right side
    619,748.10x = 482,813,022,010.32
  5. Step 5: Solve for x
    x = 482,813,022,010.32/619,748.10
  6. Step 6: Final answer
    x = 779,047.20

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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.