Home / 861,666.42-1,292,506.65-293,176.71

Finding the Fourth Proportional to 861,666.42, 1,292,506.65 and 293,176.71

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Solution

The fourth proportional to 861,666.42, 1,292,506.65 and 293,176.71 is: 439,767.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,666.42 : 1,292,506.65 = 293,176.71 : x
  2. Step 2: Convert to fraction form
    861,666.42/1,292,506.65 = 293,176.71/x
  3. Step 3: Cross multiply
    861,666.42x = 1,292,506.65 × 293,176.71
  4. Step 4: Simplify right side
    861,666.42x = 378,932,847,300.12
  5. Step 5: Solve for x
    x = 378,932,847,300.12/861,666.42
  6. Step 6: Final answer
    x = 439,767.45

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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.