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Finding the Fourth Proportional to 935,340.16, 1,403,013.16 and 261,417

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Solution

The fourth proportional to 935,340.16, 1,403,013.16 and 261,417 is: 392,126.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,340.16 : 1,403,013.16 = 261,417 : x
  2. Step 2: Convert to fraction form
    935,340.16/1,403,013.16 = 261,417/x
  3. Step 3: Cross multiply
    935,340.16x = 1,403,013.16 × 261,417
  4. Step 4: Simplify right side
    935,340.16x = 366,771,491,247.72
  5. Step 5: Solve for x
    x = 366,771,491,247.72/935,340.16
  6. Step 6: Final answer
    x = 392,126.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.