Home / 282,613.96-390,384.66-198,011.08

Finding the Fourth Proportional to 282,613.96, 390,384.66 and 198,011.08

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Solution

The fourth proportional to 282,613.96, 390,384.66 and 198,011.08 is: 273,519.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,613.96 : 390,384.66 = 198,011.08 : x
  2. Step 2: Convert to fraction form
    282,613.96/390,384.66 = 198,011.08/x
  3. Step 3: Cross multiply
    282,613.96x = 390,384.66 × 198,011.08
  4. Step 4: Simplify right side
    282,613.96x = 77,300,488,142.03
  5. Step 5: Solve for x
    x = 77,300,488,142.03/282,613.96
  6. Step 6: Final answer
    x = 273,519.71

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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.