Home / 1,010,419-1,394,378.34-557,710.12

Finding the Fourth Proportional to 1,010,419, 1,394,378.34 and 557,710.12

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Solution

The fourth proportional to 1,010,419, 1,394,378.34 and 557,710.12 is: 769,640.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,419 : 1,394,378.34 = 557,710.12 : x
  2. Step 2: Convert to fraction form
    1,010,419/1,394,378.34 = 557,710.12/x
  3. Step 3: Cross multiply
    1,010,419x = 1,394,378.34 × 557,710.12
  4. Step 4: Simplify right side
    1,010,419x = 777,658,911,326.80
  5. Step 5: Solve for x
    x = 777,658,911,326.80/1,010,419
  6. Step 6: Final answer
    x = 769,640.03

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Double scale
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Similar ratio
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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.