Home / 658,511.40-987,810.30-185,212.20

Finding the Fourth Proportional to 658,511.40, 987,810.30 and 185,212.20

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Solution

The fourth proportional to 658,511.40, 987,810.30 and 185,212.20 is: 277,830.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,511.40 : 987,810.30 = 185,212.20 : x
  2. Step 2: Convert to fraction form
    658,511.40/987,810.30 = 185,212.20/x
  3. Step 3: Cross multiply
    658,511.40x = 987,810.30 × 185,212.20
  4. Step 4: Simplify right side
    658,511.40x = 182,954,518,845.66
  5. Step 5: Solve for x
    x = 182,954,518,845.66/658,511.40
  6. Step 6: Final answer
    x = 277,830.45

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1.5x scale

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.