Home / 763,669.20-1,053,801.78-441,400.16

Finding the Fourth Proportional to 763,669.20, 1,053,801.78 and 441,400.16

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Solution

The fourth proportional to 763,669.20, 1,053,801.78 and 441,400.16 is: 609,096.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,669.20 : 1,053,801.78 = 441,400.16 : x
  2. Step 2: Convert to fraction form
    763,669.20/1,053,801.78 = 441,400.16/x
  3. Step 3: Cross multiply
    763,669.20x = 1,053,801.78 × 441,400.16
  4. Step 4: Simplify right side
    763,669.20x = 465,148,274,300.29
  5. Step 5: Solve for x
    x = 465,148,274,300.29/763,669.20
  6. Step 6: Final answer
    x = 609,096.55

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1.5x scale

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.