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Finding the Fourth Proportional to 432,816.18, 652,178.56 and 355,658.82

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Solution

The fourth proportional to 432,816.18, 652,178.56 and 355,658.82 is: 535,915.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,816.18 : 652,178.56 = 355,658.82 : x
  2. Step 2: Convert to fraction form
    432,816.18/652,178.56 = 355,658.82/x
  3. Step 3: Cross multiply
    432,816.18x = 652,178.56 × 355,658.82
  4. Step 4: Simplify right side
    432,816.18x = 231,953,060,636.00
  5. Step 5: Solve for x
    x = 231,953,060,636.00/432,816.18
  6. Step 6: Final answer
    x = 535,915.87

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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.