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Finding the Fourth Proportional to 577,039.60, 865,559.40 and 519,958.90

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Solution

The fourth proportional to 577,039.60, 865,559.40 and 519,958.90 is: 779,938.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,039.60 : 865,559.40 = 519,958.90 : x
  2. Step 2: Convert to fraction form
    577,039.60/865,559.40 = 519,958.90/x
  3. Step 3: Cross multiply
    577,039.60x = 865,559.40 × 519,958.90
  4. Step 4: Simplify right side
    577,039.60x = 450,055,313,508.66
  5. Step 5: Solve for x
    x = 450,055,313,508.66/577,039.60
  6. Step 6: Final answer
    x = 779,938.35

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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.