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Finding the Fourth Proportional to 452,990.45, 625,110.91 and 249,039.90

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Solution

The fourth proportional to 452,990.45, 625,110.91 and 249,039.90 is: 343,666.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,990.45 : 625,110.91 = 249,039.90 : x
  2. Step 2: Convert to fraction form
    452,990.45/625,110.91 = 249,039.90/x
  3. Step 3: Cross multiply
    452,990.45x = 625,110.91 × 249,039.90
  4. Step 4: Simplify right side
    452,990.45x = 155,677,557,892.71
  5. Step 5: Solve for x
    x = 155,677,557,892.71/452,990.45
  6. Step 6: Final answer
    x = 343,666.31

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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.