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Finding the Fourth Proportional to 769,809,463.56, 1,152,830,865.60 and 695,195,177.22

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Solution

The fourth proportional to 769,809,463.56, 1,152,830,865.60 and 695,195,177.22 is: 1,041,091,979.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,809,463.56 : 1,152,830,865.60 = 695,195,177.22 : x
  2. Step 2: Convert to fraction form
    769,809,463.56/1,152,830,865.60 = 695,195,177.22/x
  3. Step 3: Cross multiply
    769,809,463.56x = 1,152,830,865.60 × 695,195,177.22
  4. Step 4: Simplify right side
    769,809,463.56x = 801,442,457,915,478,016
  5. Step 5: Solve for x
    x = 801,442,457,915,478,016/769,809,463.56
  6. Step 6: Final answer
    x = 1,041,091,979.06

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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.