Home / 319,146.89-440,417.25-175,920.26

Finding the Fourth Proportional to 319,146.89, 440,417.25 and 175,920.26

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Solution

The fourth proportional to 319,146.89, 440,417.25 and 175,920.26 is: 242,766.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,146.89 : 440,417.25 = 175,920.26 : x
  2. Step 2: Convert to fraction form
    319,146.89/440,417.25 = 175,920.26/x
  3. Step 3: Cross multiply
    319,146.89x = 440,417.25 × 175,920.26
  4. Step 4: Simplify right side
    319,146.89x = 77,478,314,926.40
  5. Step 5: Solve for x
    x = 77,478,314,926.40/319,146.89
  6. Step 6: Final answer
    x = 242,766.95

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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.