Home / 515,844.40-773,766.60-356,412.10

Finding the Fourth Proportional to 515,844.40, 773,766.60 and 356,412.10

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Solution

The fourth proportional to 515,844.40, 773,766.60 and 356,412.10 is: 534,618.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,844.40 : 773,766.60 = 356,412.10 : x
  2. Step 2: Convert to fraction form
    515,844.40/773,766.60 = 356,412.10/x
  3. Step 3: Cross multiply
    515,844.40x = 773,766.60 × 356,412.10
  4. Step 4: Simplify right side
    515,844.40x = 275,779,778,815.86
  5. Step 5: Solve for x
    x = 275,779,778,815.86/515,844.40
  6. Step 6: Final answer
    x = 534,618.15

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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.