Home / 579,417.20-869,125.80-501,657.20

Finding the Fourth Proportional to 579,417.20, 869,125.80 and 501,657.20

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Solution

The fourth proportional to 579,417.20, 869,125.80 and 501,657.20 is: 752,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,417.20 : 869,125.80 = 501,657.20 : x
  2. Step 2: Convert to fraction form
    579,417.20/869,125.80 = 501,657.20/x
  3. Step 3: Cross multiply
    579,417.20x = 869,125.80 × 501,657.20
  4. Step 4: Simplify right side
    579,417.20x = 436,003,215,275.76
  5. Step 5: Solve for x
    x = 436,003,215,275.76/579,417.20
  6. Step 6: Final answer
    x = 752,485.80

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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.