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Finding the Fourth Proportional to 675,775.12, 932,570.04 and 369,851.80

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Solution

The fourth proportional to 675,775.12, 932,570.04 and 369,851.80 is: 510,395.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,775.12 : 932,570.04 = 369,851.80 : x
  2. Step 2: Convert to fraction form
    675,775.12/932,570.04 = 369,851.80/x
  3. Step 3: Cross multiply
    675,775.12x = 932,570.04 × 369,851.80
  4. Step 4: Simplify right side
    675,775.12x = 344,912,707,920.07
  5. Step 5: Solve for x
    x = 344,912,707,920.07/675,775.12
  6. Step 6: Final answer
    x = 510,395.69

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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.