Home / 930,608.27-1,284,211.43-517,143.65

Finding the Fourth Proportional to 930,608.27, 1,284,211.43 and 517,143.65

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Solution

The fourth proportional to 930,608.27, 1,284,211.43 and 517,143.65 is: 713,642.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,608.27 : 1,284,211.43 = 517,143.65 : x
  2. Step 2: Convert to fraction form
    930,608.27/1,284,211.43 = 517,143.65/x
  3. Step 3: Cross multiply
    930,608.27x = 1,284,211.43 × 517,143.65
  4. Step 4: Simplify right side
    930,608.27x = 664,121,779,860.86
  5. Step 5: Solve for x
    x = 664,121,779,860.86/930,608.27
  6. Step 6: Final answer
    x = 713,642.68

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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.