Home / 912,231.55-1,259,079.38-530,478.55

Finding the Fourth Proportional to 912,231.55, 1,259,079.38 and 530,478.55

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Solution

The fourth proportional to 912,231.55, 1,259,079.38 and 530,478.55 is: 732,176.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,231.55 : 1,259,079.38 = 530,478.55 : x
  2. Step 2: Convert to fraction form
    912,231.55/1,259,079.38 = 530,478.55/x
  3. Step 3: Cross multiply
    912,231.55x = 1,259,079.38 × 530,478.55
  4. Step 4: Simplify right side
    912,231.55x = 667,914,602,015.80
  5. Step 5: Solve for x
    x = 667,914,602,015.80/912,231.55
  6. Step 6: Final answer
    x = 732,176.61

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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.