Home / 1,010,129.77-1,393,972.23-557,420.77

Finding the Fourth Proportional to 1,010,129.77, 1,393,972.23 and 557,420.77

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Solution

The fourth proportional to 1,010,129.77, 1,393,972.23 and 557,420.77 is: 769,236.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,129.77 : 1,393,972.23 = 557,420.77 : x
  2. Step 2: Convert to fraction form
    1,010,129.77/1,393,972.23 = 557,420.77/x
  3. Step 3: Cross multiply
    1,010,129.77x = 1,393,972.23 × 557,420.77
  4. Step 4: Simplify right side
    1,010,129.77x = 777,029,073,805.22
  5. Step 5: Solve for x
    x = 777,029,073,805.22/1,010,129.77
  6. Step 6: Final answer
    x = 769,236.88

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1.5x scale

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.