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Finding the Fourth Proportional to 655,129,065,378.80, 982,693,598,068.20 and 655,129,065,378.80

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Solution

The fourth proportional to 655,129,065,378.80, 982,693,598,068.20 and 655,129,065,378.80 is: 982,693,598,068.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,129,065,378.80 : 982,693,598,068.20 = 655,129,065,378.80 : x
  2. Step 2: Convert to fraction form
    655,129,065,378.80/982,693,598,068.20 = 655,129,065,378.80/x
  3. Step 3: Cross multiply
    655,129,065,378.80x = 982,693,598,068.20 × 655,129,065,378.80
  4. Step 4: Simplify right side
    655,129,065,378.80x = 643,791,138,456,150,007,087,104
  5. Step 5: Solve for x
    x = 643,791,138,456,150,007,087,104/655,129,065,378.80
  6. Step 6: Final answer
    x = 982,693,598,068.20

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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.