Home / 319,071.27-440,312.68-173,878.35

Finding the Fourth Proportional to 319,071.27, 440,312.68 and 173,878.35

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Solution

The fourth proportional to 319,071.27, 440,312.68 and 173,878.35 is: 239,949.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,071.27 : 440,312.68 = 173,878.35 : x
  2. Step 2: Convert to fraction form
    319,071.27/440,312.68 = 173,878.35/x
  3. Step 3: Cross multiply
    319,071.27x = 440,312.68 × 173,878.35
  4. Step 4: Simplify right side
    319,071.27x = 76,560,842,282.48
  5. Step 5: Solve for x
    x = 76,560,842,282.48/319,071.27
  6. Step 6: Final answer
    x = 239,949.03

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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.