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Finding the Fourth Proportional to 432,818.56, 652,182.14 and 355,661.20

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Solution

The fourth proportional to 432,818.56, 652,182.14 and 355,661.20 is: 535,919.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,818.56 : 652,182.14 = 355,661.20 : x
  2. Step 2: Convert to fraction form
    432,818.56/652,182.14 = 355,661.20/x
  3. Step 3: Cross multiply
    432,818.56x = 652,182.14 × 355,661.20
  4. Step 4: Simplify right side
    432,818.56x = 231,955,882,530.97
  5. Step 5: Solve for x
    x = 231,955,882,530.97/432,818.56
  6. Step 6: Final answer
    x = 535,919.45

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.