Home / 1,108,905.60-1,530,266.40-656,342.40

Finding the Fourth Proportional to 1,108,905.60, 1,530,266.40 and 656,342.40

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Solution

The fourth proportional to 1,108,905.60, 1,530,266.40 and 656,342.40 is: 905,738.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,905.60 : 1,530,266.40 = 656,342.40 : x
  2. Step 2: Convert to fraction form
    1,108,905.60/1,530,266.40 = 656,342.40/x
  3. Step 3: Cross multiply
    1,108,905.60x = 1,530,266.40 × 656,342.40
  4. Step 4: Simplify right side
    1,108,905.60x = 1,004,378,721,615.36
  5. Step 5: Solve for x
    x = 1,004,378,721,615.36/1,108,905.60
  6. Step 6: Final answer
    x = 905,738.70

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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.