Home / 319,328.16-440,656.25-198,466.85

Finding the Fourth Proportional to 319,328.16, 440,656.25 and 198,466.85

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Solution

The fourth proportional to 319,328.16, 440,656.25 and 198,466.85 is: 273,873.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,328.16 : 440,656.25 = 198,466.85 : x
  2. Step 2: Convert to fraction form
    319,328.16/440,656.25 = 198,466.85/x
  3. Step 3: Cross multiply
    319,328.16x = 440,656.25 × 198,466.85
  4. Step 4: Simplify right side
    319,328.16x = 87,455,654,674.70
  5. Step 5: Solve for x
    x = 87,455,654,674.70/319,328.16
  6. Step 6: Final answer
    x = 273,873.92

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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.