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Finding the Fourth Proportional to 432,816.28, 652,178.71 and 355,658.92

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Solution

The fourth proportional to 432,816.28, 652,178.71 and 355,658.92 is: 535,916.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,816.28 : 652,178.71 = 355,658.92 : x
  2. Step 2: Convert to fraction form
    432,816.28/652,178.71 = 355,658.92/x
  3. Step 3: Cross multiply
    432,816.28x = 652,178.71 × 355,658.92
  4. Step 4: Simplify right side
    432,816.28x = 231,953,172,459.14
  5. Step 5: Solve for x
    x = 231,953,172,459.14/432,816.28
  6. Step 6: Final answer
    x = 535,916.01

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1.5x scale

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.