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Finding the Fourth Proportional to 417,587.40, 626,378.67 and 151,285.73

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Solution

The fourth proportional to 417,587.40, 626,378.67 and 151,285.73 is: 226,927.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,587.40 : 626,378.67 = 151,285.73 : x
  2. Step 2: Convert to fraction form
    417,587.40/626,378.67 = 151,285.73/x
  3. Step 3: Cross multiply
    417,587.40x = 626,378.67 × 151,285.73
  4. Step 4: Simplify right side
    417,587.40x = 94,762,151,215.49
  5. Step 5: Solve for x
    x = 94,762,151,215.49/417,587.40
  6. Step 6: Final answer
    x = 226,927.71

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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.