Home / 838,657.92-1,256,936.76-660,461.16

Finding the Fourth Proportional to 838,657.92, 1,256,936.76 and 660,461.16

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Solution

The fourth proportional to 838,657.92, 1,256,936.76 and 660,461.16 is: 989,864.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,657.92 : 1,256,936.76 = 660,461.16 : x
  2. Step 2: Convert to fraction form
    838,657.92/1,256,936.76 = 660,461.16/x
  3. Step 3: Cross multiply
    838,657.92x = 1,256,936.76 × 660,461.16
  4. Step 4: Simplify right side
    838,657.92x = 830,157,910,556.24
  5. Step 5: Solve for x
    x = 830,157,910,556.24/838,657.92
  6. Step 6: Final answer
    x = 989,864.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.