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Finding the Fourth Proportional to 1,889,613.40, 2,834,765.70 and 767,795.80

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Solution

The fourth proportional to 1,889,613.40, 2,834,765.70 and 767,795.80 is: 1,151,834.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889,613.40 : 2,834,765.70 = 767,795.80 : x
  2. Step 2: Convert to fraction form
    1,889,613.40/2,834,765.70 = 767,795.80/x
  3. Step 3: Cross multiply
    1,889,613.40x = 2,834,765.70 × 767,795.80
  4. Step 4: Simplify right side
    1,889,613.40x = 2,176,521,198,444.06
  5. Step 5: Solve for x
    x = 2,176,521,198,444.06/1,889,613.40
  6. Step 6: Final answer
    x = 1,151,834.13

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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.