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Finding the Fourth Proportional to 5,561,430.90, 7,797,200.70 and 5,561,430.90

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Solution

The fourth proportional to 5,561,430.90, 7,797,200.70 and 5,561,430.90 is: 7,797,200.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,561,430.90 : 7,797,200.70 = 5,561,430.90 : x
  2. Step 2: Convert to fraction form
    5,561,430.90/7,797,200.70 = 5,561,430.90/x
  3. Step 3: Cross multiply
    5,561,430.90x = 7,797,200.70 × 5,561,430.90
  4. Step 4: Simplify right side
    5,561,430.90x = 43,363,592,906,481.63
  5. Step 5: Solve for x
    x = 43,363,592,906,481.63/5,561,430.90
  6. Step 6: Final answer
    x = 7,797,200.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.