Home / 577,975.91-866,748.80-198,790.20

Finding the Fourth Proportional to 577,975.91, 866,748.80 and 198,790.20

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Solution

The fourth proportional to 577,975.91, 866,748.80 and 198,790.20 is: 298,111.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,975.91 : 866,748.80 = 198,790.20 : x
  2. Step 2: Convert to fraction form
    577,975.91/866,748.80 = 198,790.20/x
  3. Step 3: Cross multiply
    577,975.91x = 866,748.80 × 198,790.20
  4. Step 4: Simplify right side
    577,975.91x = 172,301,167,798.74
  5. Step 5: Solve for x
    x = 172,301,167,798.74/577,975.91
  6. Step 6: Final answer
    x = 298,111.33

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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.