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Finding the Fourth Proportional to 445,897.57, 668,844.57 and 161,521.57

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Solution

The fourth proportional to 445,897.57, 668,844.57 and 161,521.57 is: 242,281.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,897.57 : 668,844.57 = 161,521.57 : x
  2. Step 2: Convert to fraction form
    445,897.57/668,844.57 = 161,521.57/x
  3. Step 3: Cross multiply
    445,897.57x = 668,844.57 × 161,521.57
  4. Step 4: Simplify right side
    445,897.57x = 108,032,822,754.56
  5. Step 5: Solve for x
    x = 108,032,822,754.56/445,897.57
  6. Step 6: Final answer
    x = 242,281.70

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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.