Home / 866,154.33-1,195,300.70-478,995.80

Finding the Fourth Proportional to 866,154.33, 1,195,300.70 and 478,995.80

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Solution

The fourth proportional to 866,154.33, 1,195,300.70 and 478,995.80 is: 661,018.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,154.33 : 1,195,300.70 = 478,995.80 : x
  2. Step 2: Convert to fraction form
    866,154.33/1,195,300.70 = 478,995.80/x
  3. Step 3: Cross multiply
    866,154.33x = 1,195,300.70 × 478,995.80
  4. Step 4: Simplify right side
    866,154.33x = 572,544,006,665.58
  5. Step 5: Solve for x
    x = 572,544,006,665.58/866,154.33
  6. Step 6: Final answer
    x = 661,018.47

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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.