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Finding the Fourth Proportional to 560,394.72, 773,347.28 and 305,751.20

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Solution

The fourth proportional to 560,394.72, 773,347.28 and 305,751.20 is: 421,938.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,394.72 : 773,347.28 = 305,751.20 : x
  2. Step 2: Convert to fraction form
    560,394.72/773,347.28 = 305,751.20/x
  3. Step 3: Cross multiply
    560,394.72x = 773,347.28 × 305,751.20
  4. Step 4: Simplify right side
    560,394.72x = 236,451,858,876.74
  5. Step 5: Solve for x
    x = 236,451,858,876.74/560,394.72
  6. Step 6: Final answer
    x = 421,938.06

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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.