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Finding the Fourth Proportional to 524,876.77, 787,440.10 and 169,890.76

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Solution

The fourth proportional to 524,876.77, 787,440.10 and 169,890.76 is: 254,876.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,876.77 : 787,440.10 = 169,890.76 : x
  2. Step 2: Convert to fraction form
    524,876.77/787,440.10 = 169,890.76/x
  3. Step 3: Cross multiply
    524,876.77x = 787,440.10 × 169,890.76
  4. Step 4: Simplify right side
    524,876.77x = 133,778,797,043.48
  5. Step 5: Solve for x
    x = 133,778,797,043.48/524,876.77
  6. Step 6: Final answer
    x = 254,876.58

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1.5x scale

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.