Home / 778,407.10-1,167,999.45-441,706.30

Finding the Fourth Proportional to 778,407.10, 1,167,999.45 and 441,706.30

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Solution

The fourth proportional to 778,407.10, 1,167,999.45 and 441,706.30 is: 662,780.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,407.10 : 1,167,999.45 = 441,706.30 : x
  2. Step 2: Convert to fraction form
    778,407.10/1,167,999.45 = 441,706.30/x
  3. Step 3: Cross multiply
    778,407.10x = 1,167,999.45 × 441,706.30
  4. Step 4: Simplify right side
    778,407.10x = 515,912,715,461.54
  5. Step 5: Solve for x
    x = 515,912,715,461.54/778,407.10
  6. Step 6: Final answer
    x = 662,780.07

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1.5x scale

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.