Home / 319,079.18-440,329.37-173,885.01

Finding the Fourth Proportional to 319,079.18, 440,329.37 and 173,885.01

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Solution

The fourth proportional to 319,079.18, 440,329.37 and 173,885.01 is: 239,961.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,079.18 : 440,329.37 = 173,885.01 : x
  2. Step 2: Convert to fraction form
    319,079.18/440,329.37 = 173,885.01/x
  3. Step 3: Cross multiply
    319,079.18x = 440,329.37 × 173,885.01
  4. Step 4: Simplify right side
    319,079.18x = 76,566,674,385.08
  5. Step 5: Solve for x
    x = 76,566,674,385.08/319,079.18
  6. Step 6: Final answer
    x = 239,961.36

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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.