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Finding the Fourth Proportional to 641,343.95, 885,041.02 and 350,954.36

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Solution

The fourth proportional to 641,343.95, 885,041.02 and 350,954.36 is: 484,309.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,343.95 : 885,041.02 = 350,954.36 : x
  2. Step 2: Convert to fraction form
    641,343.95/885,041.02 = 350,954.36/x
  3. Step 3: Cross multiply
    641,343.95x = 885,041.02 × 350,954.36
  4. Step 4: Simplify right side
    641,343.95x = 310,609,006,083.06
  5. Step 5: Solve for x
    x = 310,609,006,083.06/641,343.95
  6. Step 6: Final answer
    x = 484,309.56

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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.