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Finding the Fourth Proportional to 868,853,670.53, 1,303,280,505.79 and 868,853,670.53

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Solution

The fourth proportional to 868,853,670.53, 1,303,280,505.79 and 868,853,670.53 is: 1,303,280,505.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,853,670.53 : 1,303,280,505.79 = 868,853,670.53 : x
  2. Step 2: Convert to fraction form
    868,853,670.53/1,303,280,505.79 = 868,853,670.53/x
  3. Step 3: Cross multiply
    868,853,670.53x = 1,303,280,505.79 × 868,853,670.53
  4. Step 4: Simplify right side
    868,853,670.53x = 1,132,360,051,177,147,776
  5. Step 5: Solve for x
    x = 1,132,360,051,177,147,776/868,853,670.53
  6. Step 6: Final answer
    x = 1,303,280,505.79

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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.