Home / 938,959.65-1,409,915.70-540,378.90

Finding the Fourth Proportional to 938,959.65, 1,409,915.70 and 540,378.90

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Solution

The fourth proportional to 938,959.65, 1,409,915.70 and 540,378.90 is: 811,417.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,959.65 : 1,409,915.70 = 540,378.90 : x
  2. Step 2: Convert to fraction form
    938,959.65/1,409,915.70 = 540,378.90/x
  3. Step 3: Cross multiply
    938,959.65x = 1,409,915.70 × 540,378.90
  4. Step 4: Simplify right side
    938,959.65x = 761,888,695,058.73
  5. Step 5: Solve for x
    x = 761,888,695,058.73/938,959.65
  6. Step 6: Final answer
    x = 811,417.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.