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Finding the Fourth Proportional to 547,145.48, 754,358.72 and 448,666.01

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Solution

The fourth proportional to 547,145.48, 754,358.72 and 448,666.01 is: 618,583.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,145.48 : 754,358.72 = 448,666.01 : x
  2. Step 2: Convert to fraction form
    547,145.48/754,358.72 = 448,666.01/x
  3. Step 3: Cross multiply
    547,145.48x = 754,358.72 × 448,666.01
  4. Step 4: Simplify right side
    547,145.48x = 338,455,118,470.19
  5. Step 5: Solve for x
    x = 338,455,118,470.19/547,145.48
  6. Step 6: Final answer
    x = 618,583.41

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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.