Home / 955,950.79-1,319,228.87-520,380.66

Finding the Fourth Proportional to 955,950.79, 1,319,228.87 and 520,380.66

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Solution

The fourth proportional to 955,950.79, 1,319,228.87 and 520,380.66 is: 718,134.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    955,950.79 : 1,319,228.87 = 520,380.66 : x
  2. Step 2: Convert to fraction form
    955,950.79/1,319,228.87 = 520,380.66/x
  3. Step 3: Cross multiply
    955,950.79x = 1,319,228.87 × 520,380.66
  4. Step 4: Simplify right side
    955,950.79x = 686,501,190,061.65
  5. Step 5: Solve for x
    x = 686,501,190,061.65/955,950.79
  6. Step 6: Final answer
    x = 718,134.45

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.