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Finding the Fourth Proportional to 880,326.86, 1,214,863.67 and 512,794.55

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Solution

The fourth proportional to 880,326.86, 1,214,863.67 and 512,794.55 is: 707,663.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,326.86 : 1,214,863.67 = 512,794.55 : x
  2. Step 2: Convert to fraction form
    880,326.86/1,214,863.67 = 512,794.55/x
  3. Step 3: Cross multiply
    880,326.86x = 1,214,863.67 × 512,794.55
  4. Step 4: Simplify right side
    880,326.86x = 622,975,463,570.07
  5. Step 5: Solve for x
    x = 622,975,463,570.07/880,326.86
  6. Step 6: Final answer
    x = 707,663.82

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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.