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Finding the Fourth Proportional to 605,232,012.80, 907,848,019.20 and 550,706,166.20

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Solution

The fourth proportional to 605,232,012.80, 907,848,019.20 and 550,706,166.20 is: 826,059,249.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,232,012.80 : 907,848,019.20 = 550,706,166.20 : x
  2. Step 2: Convert to fraction form
    605,232,012.80/907,848,019.20 = 550,706,166.20/x
  3. Step 3: Cross multiply
    605,232,012.80x = 907,848,019.20 × 550,706,166.20
  4. Step 4: Simplify right side
    605,232,012.80x = 499,957,502,145,896,064
  5. Step 5: Solve for x
    x = 499,957,502,145,896,064/605,232,012.80
  6. Step 6: Final answer
    x = 826,059,249.30

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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.