Home / 897,290.33-1,238,452.28-515,527.61

Finding the Fourth Proportional to 897,290.33, 1,238,452.28 and 515,527.61

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Solution

The fourth proportional to 897,290.33, 1,238,452.28 and 515,527.61 is: 711,538.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,290.33 : 1,238,452.28 = 515,527.61 : x
  2. Step 2: Convert to fraction form
    897,290.33/1,238,452.28 = 515,527.61/x
  3. Step 3: Cross multiply
    897,290.33x = 1,238,452.28 × 515,527.61
  4. Step 4: Simplify right side
    897,290.33x = 638,456,344,007.45
  5. Step 5: Solve for x
    x = 638,456,344,007.45/897,290.33
  6. Step 6: Final answer
    x = 711,538.20

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Double scale
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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.