Home / 866,853.89-1,299,957.54-298,074.12

Finding the Fourth Proportional to 866,853.89, 1,299,957.54 and 298,074.12

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Solution

The fourth proportional to 866,853.89, 1,299,957.54 and 298,074.12 is: 447,000.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,853.89 : 1,299,957.54 = 298,074.12 : x
  2. Step 2: Convert to fraction form
    866,853.89/1,299,957.54 = 298,074.12/x
  3. Step 3: Cross multiply
    866,853.89x = 1,299,957.54 × 298,074.12
  4. Step 4: Simplify right side
    866,853.89x = 387,483,699,772.87
  5. Step 5: Solve for x
    x = 387,483,699,772.87/866,853.89
  6. Step 6: Final answer
    x = 447,000.01

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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.