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Finding the Fourth Proportional to 316,710.89, 436,952.42 and 180,646.91

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Solution

The fourth proportional to 316,710.89, 436,952.42 and 180,646.91 is: 249,230.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,710.89 : 436,952.42 = 180,646.91 : x
  2. Step 2: Convert to fraction form
    316,710.89/436,952.42 = 180,646.91/x
  3. Step 3: Cross multiply
    316,710.89x = 436,952.42 × 180,646.91
  4. Step 4: Simplify right side
    316,710.89x = 78,934,104,734.16
  5. Step 5: Solve for x
    x = 78,934,104,734.16/316,710.89
  6. Step 6: Final answer
    x = 249,230.79

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1.5x scale

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.