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Finding the Fourth Proportional to 754,905, 1,041,425.61 and 448,807.68

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Solution

The fourth proportional to 754,905, 1,041,425.61 and 448,807.68 is: 619,150.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,905 : 1,041,425.61 = 448,807.68 : x
  2. Step 2: Convert to fraction form
    754,905/1,041,425.61 = 448,807.68/x
  3. Step 3: Cross multiply
    754,905x = 1,041,425.61 × 448,807.68
  4. Step 4: Simplify right side
    754,905x = 467,399,811,916.69
  5. Step 5: Solve for x
    x = 467,399,811,916.69/754,905
  6. Step 6: Final answer
    x = 619,150.50

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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.