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Finding the Fourth Proportional to 576,031.95, 794,968.79 and 317,959.47

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Solution

The fourth proportional to 576,031.95, 794,968.79 and 317,959.47 is: 438,808.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,031.95 : 794,968.79 = 317,959.47 : x
  2. Step 2: Convert to fraction form
    576,031.95/794,968.79 = 317,959.47/x
  3. Step 3: Cross multiply
    576,031.95x = 794,968.79 × 317,959.47
  4. Step 4: Simplify right side
    576,031.95x = 252,767,855,134.94
  5. Step 5: Solve for x
    x = 252,767,855,134.94/576,031.95
  6. Step 6: Final answer
    x = 438,808.74

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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.