Home / 897,285.83-1,238,446.07-515,523.11

Finding the Fourth Proportional to 897,285.83, 1,238,446.07 and 515,523.11

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Solution

The fourth proportional to 897,285.83, 1,238,446.07 and 515,523.11 is: 711,531.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,285.83 : 1,238,446.07 = 515,523.11 : x
  2. Step 2: Convert to fraction form
    897,285.83/1,238,446.07 = 515,523.11/x
  3. Step 3: Cross multiply
    897,285.83x = 1,238,446.07 × 515,523.11
  4. Step 4: Simplify right side
    897,285.83x = 638,447,560,803.83
  5. Step 5: Solve for x
    x = 638,447,560,803.83/897,285.83
  6. Step 6: Final answer
    x = 711,531.98

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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.