Home / 859,761.72-1,186,376.97-497,130.71

Finding the Fourth Proportional to 859,761.72, 1,186,376.97 and 497,130.71

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Solution

The fourth proportional to 859,761.72, 1,186,376.97 and 497,130.71 is: 685,985.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,761.72 : 1,186,376.97 = 497,130.71 : x
  2. Step 2: Convert to fraction form
    859,761.72/1,186,376.97 = 497,130.71/x
  3. Step 3: Cross multiply
    859,761.72x = 1,186,376.97 × 497,130.71
  4. Step 4: Simplify right side
    859,761.72x = 589,784,419,491.86
  5. Step 5: Solve for x
    x = 589,784,419,491.86/859,761.72
  6. Step 6: Final answer
    x = 685,985.90

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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.