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Finding the Fourth Proportional to 972,567.66, 1,342,759.71 and 667,155.66

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Solution

The fourth proportional to 972,567.66, 1,342,759.71 and 667,155.66 is: 921,097.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,567.66 : 1,342,759.71 = 667,155.66 : x
  2. Step 2: Convert to fraction form
    972,567.66/1,342,759.71 = 667,155.66/x
  3. Step 3: Cross multiply
    972,567.66x = 1,342,759.71 × 667,155.66
  4. Step 4: Simplify right side
    972,567.66x = 895,829,740,546.46
  5. Step 5: Solve for x
    x = 895,829,740,546.46/972,567.66
  6. Step 6: Final answer
    x = 921,097.60

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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.