Home / 319,030.30-440,292.84-238,317.70

Finding the Fourth Proportional to 319,030.30, 440,292.84 and 238,317.70

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Solution

The fourth proportional to 319,030.30, 440,292.84 and 238,317.70 is: 328,901.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,030.30 : 440,292.84 = 238,317.70 : x
  2. Step 2: Convert to fraction form
    319,030.30/440,292.84 = 238,317.70/x
  3. Step 3: Cross multiply
    319,030.30x = 440,292.84 × 238,317.70
  4. Step 4: Simplify right side
    319,030.30x = 104,929,576,955.27
  5. Step 5: Solve for x
    x = 104,929,576,955.27/319,030.30
  6. Step 6: Final answer
    x = 328,901.60

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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.