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Finding the Fourth Proportional to 370,618.50, 511,508.40 and 234,665.07

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Solution

The fourth proportional to 370,618.50, 511,508.40 and 234,665.07 is: 323,872.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,618.50 : 511,508.40 = 234,665.07 : x
  2. Step 2: Convert to fraction form
    370,618.50/511,508.40 = 234,665.07/x
  3. Step 3: Cross multiply
    370,618.50x = 511,508.40 × 234,665.07
  4. Step 4: Simplify right side
    370,618.50x = 120,033,154,491.59
  5. Step 5: Solve for x
    x = 120,033,154,491.59/370,618.50
  6. Step 6: Final answer
    x = 323,872.54

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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.