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Finding the Fourth Proportional to 373,123.31, 514,923.94 and 212,005.65

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Solution

The fourth proportional to 373,123.31, 514,923.94 and 212,005.65 is: 292,575.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,123.31 : 514,923.94 = 212,005.65 : x
  2. Step 2: Convert to fraction form
    373,123.31/514,923.94 = 212,005.65/x
  3. Step 3: Cross multiply
    373,123.31x = 514,923.94 × 212,005.65
  4. Step 4: Simplify right side
    373,123.31x = 109,166,785,603.70
  5. Step 5: Solve for x
    x = 109,166,785,603.70/373,123.31
  6. Step 6: Final answer
    x = 292,575.62

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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.