Home / 519,945.20-779,917.80-496,617.20

Finding the Fourth Proportional to 519,945.20, 779,917.80 and 496,617.20

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Solution

The fourth proportional to 519,945.20, 779,917.80 and 496,617.20 is: 744,925.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,945.20 : 779,917.80 = 496,617.20 : x
  2. Step 2: Convert to fraction form
    519,945.20/779,917.80 = 496,617.20/x
  3. Step 3: Cross multiply
    519,945.20x = 779,917.80 × 496,617.20
  4. Step 4: Simplify right side
    519,945.20x = 387,320,594,066.16
  5. Step 5: Solve for x
    x = 387,320,594,066.16/519,945.20
  6. Step 6: Final answer
    x = 744,925.80

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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.