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Finding the Fourth Proportional to 547,116.24, 755,017.53 and 317,729.93

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Solution

The fourth proportional to 547,116.24, 755,017.53 and 317,729.93 is: 438,465.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,116.24 : 755,017.53 = 317,729.93 : x
  2. Step 2: Convert to fraction form
    547,116.24/755,017.53 = 317,729.93/x
  3. Step 3: Cross multiply
    547,116.24x = 755,017.53 × 317,729.93
  4. Step 4: Simplify right side
    547,116.24x = 239,891,666,955.67
  5. Step 5: Solve for x
    x = 239,891,666,955.67/547,116.24
  6. Step 6: Final answer
    x = 438,465.63

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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.