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Finding the Fourth Proportional to 691,548.57, 954,332.91 and 385,628.58

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Solution

The fourth proportional to 691,548.57, 954,332.91 and 385,628.58 is: 532,165.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,548.57 : 954,332.91 = 385,628.58 : x
  2. Step 2: Convert to fraction form
    691,548.57/954,332.91 = 385,628.58/x
  3. Step 3: Cross multiply
    691,548.57x = 954,332.91 × 385,628.58
  4. Step 4: Simplify right side
    691,548.57x = 368,018,044,930.57
  5. Step 5: Solve for x
    x = 368,018,044,930.57/691,548.57
  6. Step 6: Final answer
    x = 532,165.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.