Home / 319,433.33-440,810.27-176,190.30

Finding the Fourth Proportional to 319,433.33, 440,810.27 and 176,190.30

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Solution

The fourth proportional to 319,433.33, 440,810.27 and 176,190.30 is: 243,138.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,433.33 : 440,810.27 = 176,190.30 : x
  2. Step 2: Convert to fraction form
    319,433.33/440,810.27 = 176,190.30/x
  3. Step 3: Cross multiply
    319,433.33x = 440,810.27 × 176,190.30
  4. Step 4: Simplify right side
    319,433.33x = 77,666,493,714.38
  5. Step 5: Solve for x
    x = 77,666,493,714.38/319,433.33
  6. Step 6: Final answer
    x = 243,138.35

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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.