Home / 912,381.90-1,259,064.59-504,472.92

Finding the Fourth Proportional to 912,381.90, 1,259,064.59 and 504,472.92

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Solution

The fourth proportional to 912,381.90, 1,259,064.59 and 504,472.92 is: 696,160.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,381.90 : 1,259,064.59 = 504,472.92 : x
  2. Step 2: Convert to fraction form
    912,381.90/1,259,064.59 = 504,472.92/x
  3. Step 3: Cross multiply
    912,381.90x = 1,259,064.59 × 504,472.92
  4. Step 4: Simplify right side
    912,381.90x = 635,163,987,663.54
  5. Step 5: Solve for x
    x = 635,163,987,663.54/912,381.90
  6. Step 6: Final answer
    x = 696,160.22

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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.