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Finding the Fourth Proportional to 468,130.87, 646,681.95 and 372,515.23

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Solution

The fourth proportional to 468,130.87, 646,681.95 and 372,515.23 is: 514,597.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,130.87 : 646,681.95 = 372,515.23 : x
  2. Step 2: Convert to fraction form
    468,130.87/646,681.95 = 372,515.23/x
  3. Step 3: Cross multiply
    468,130.87x = 646,681.95 × 372,515.23
  4. Step 4: Simplify right side
    468,130.87x = 240,898,872,107.69
  5. Step 5: Solve for x
    x = 240,898,872,107.69/468,130.87
  6. Step 6: Final answer
    x = 514,597.28

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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.