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Finding the Fourth Proportional to 641,577.40, 885,598.13 and 369,753.81

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Solution

The fourth proportional to 641,577.40, 885,598.13 and 369,753.81 is: 510,387.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,577.40 : 885,598.13 = 369,753.81 : x
  2. Step 2: Convert to fraction form
    641,577.40/885,598.13 = 369,753.81/x
  3. Step 3: Cross multiply
    641,577.40x = 885,598.13 × 369,753.81
  4. Step 4: Simplify right side
    641,577.40x = 327,453,282,696.38
  5. Step 5: Solve for x
    x = 327,453,282,696.38/641,577.40
  6. Step 6: Final answer
    x = 510,387.81

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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.