Home / 868,911.13-1,301,669.90-412,853.36

Finding the Fourth Proportional to 868,911.13, 1,301,669.90 and 412,853.36

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Solution

The fourth proportional to 868,911.13, 1,301,669.90 and 412,853.36 is: 618,473.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,911.13 : 1,301,669.90 = 412,853.36 : x
  2. Step 2: Convert to fraction form
    868,911.13/1,301,669.90 = 412,853.36/x
  3. Step 3: Cross multiply
    868,911.13x = 1,301,669.90 × 412,853.36
  4. Step 4: Simplify right side
    868,911.13x = 537,398,784,801.45
  5. Step 5: Solve for x
    x = 537,398,784,801.45/868,911.13
  6. Step 6: Final answer
    x = 618,473.82

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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.