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Finding the Fourth Proportional to 641,751.30, 885,357.54 and 369,673.38

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Solution

The fourth proportional to 641,751.30, 885,357.54 and 369,673.38 is: 509,999.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,751.30 : 885,357.54 = 369,673.38 : x
  2. Step 2: Convert to fraction form
    641,751.30/885,357.54 = 369,673.38/x
  3. Step 3: Cross multiply
    641,751.30x = 885,357.54 × 369,673.38
  4. Step 4: Simplify right side
    641,751.30x = 327,293,114,320.29
  5. Step 5: Solve for x
    x = 327,293,114,320.29/641,751.30
  6. Step 6: Final answer
    x = 509,999.92

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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.