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Finding the Fourth Proportional to 556,922.31, 768,553.55 and 302,273.52

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Solution

The fourth proportional to 556,922.31, 768,553.55 and 302,273.52 is: 417,137.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,922.31 : 768,553.55 = 302,273.52 : x
  2. Step 2: Convert to fraction form
    556,922.31/768,553.55 = 302,273.52/x
  3. Step 3: Cross multiply
    556,922.31x = 768,553.55 × 302,273.52
  4. Step 4: Simplify right side
    556,922.31x = 232,313,386,867.00
  5. Step 5: Solve for x
    x = 232,313,386,867.00/556,922.31
  6. Step 6: Final answer
    x = 417,137.87

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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.