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Finding the Fourth Proportional to 580,186.71, 869,681.39 and 243,422.91

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Solution

The fourth proportional to 580,186.71, 869,681.39 and 243,422.91 is: 364,883.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,186.71 : 869,681.39 = 243,422.91 : x
  2. Step 2: Convert to fraction form
    580,186.71/869,681.39 = 243,422.91/x
  3. Step 3: Cross multiply
    580,186.71x = 869,681.39 × 243,422.91
  4. Step 4: Simplify right side
    580,186.71x = 211,700,373,509.53
  5. Step 5: Solve for x
    x = 211,700,373,509.53/580,186.71
  6. Step 6: Final answer
    x = 364,883.18

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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.