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Finding the Fourth Proportional to 302,753.72, 417,768.72 and 186,448.70

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Solution

The fourth proportional to 302,753.72, 417,768.72 and 186,448.70 is: 257,279.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,753.72 : 417,768.72 = 186,448.70 : x
  2. Step 2: Convert to fraction form
    302,753.72/417,768.72 = 186,448.70/x
  3. Step 3: Cross multiply
    302,753.72x = 417,768.72 × 186,448.70
  4. Step 4: Simplify right side
    302,753.72x = 77,892,432,655.82
  5. Step 5: Solve for x
    x = 77,892,432,655.82/302,753.72
  6. Step 6: Final answer
    x = 257,279.86

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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.