Home / 579,455.20-869,182.80-501,695.20

Finding the Fourth Proportional to 579,455.20, 869,182.80 and 501,695.20

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Solution

The fourth proportional to 579,455.20, 869,182.80 and 501,695.20 is: 752,542.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,455.20 : 869,182.80 = 501,695.20 : x
  2. Step 2: Convert to fraction form
    579,455.20/869,182.80 = 501,695.20/x
  3. Step 3: Cross multiply
    579,455.20x = 869,182.80 × 501,695.20
  4. Step 4: Simplify right side
    579,455.20x = 436,064,838,682.56
  5. Step 5: Solve for x
    x = 436,064,838,682.56/579,455.20
  6. Step 6: Final answer
    x = 752,542.80

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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.