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Finding the Fourth Proportional to 1,295,932.05, 1,788,386.94 and 722,972.25

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Solution

The fourth proportional to 1,295,932.05, 1,788,386.94 and 722,972.25 is: 997,702.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,932.05 : 1,788,386.94 = 722,972.25 : x
  2. Step 2: Convert to fraction form
    1,295,932.05/1,788,386.94 = 722,972.25/x
  3. Step 3: Cross multiply
    1,295,932.05x = 1,788,386.94 × 722,972.25
  4. Step 4: Simplify right side
    1,295,932.05x = 1,292,954,129,882.42
  5. Step 5: Solve for x
    x = 1,292,954,129,882.42/1,295,932.05
  6. Step 6: Final answer
    x = 997,702.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.