Home / 319,292.12-440,258.82-238,583.72

Finding the Fourth Proportional to 319,292.12, 440,258.82 and 238,583.72

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Solution

The fourth proportional to 319,292.12, 440,258.82 and 238,583.72 is: 328,973.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,292.12 : 440,258.82 = 238,583.72 : x
  2. Step 2: Convert to fraction form
    319,292.12/440,258.82 = 238,583.72/x
  3. Step 3: Cross multiply
    319,292.12x = 440,258.82 × 238,583.72
  4. Step 4: Simplify right side
    319,292.12x = 105,038,587,038.41
  5. Step 5: Solve for x
    x = 105,038,587,038.41/319,292.12
  6. Step 6: Final answer
    x = 328,973.31

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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.