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Finding the Fourth Proportional to 436,920.64, 654,331.20 and 249,363.52

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Solution

The fourth proportional to 436,920.64, 654,331.20 and 249,363.52 is: 373,446.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,920.64 : 654,331.20 = 249,363.52 : x
  2. Step 2: Convert to fraction form
    436,920.64/654,331.20 = 249,363.52/x
  3. Step 3: Cross multiply
    436,920.64x = 654,331.20 × 249,363.52
  4. Step 4: Simplify right side
    436,920.64x = 163,166,331,277.82
  5. Step 5: Solve for x
    x = 163,166,331,277.82/436,920.64
  6. Step 6: Final answer
    x = 373,446.15

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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.