Home / 609,985.20-914,977.80-189,303.60

Finding the Fourth Proportional to 609,985.20, 914,977.80 and 189,303.60

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Solution

The fourth proportional to 609,985.20, 914,977.80 and 189,303.60 is: 283,955.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,985.20 : 914,977.80 = 189,303.60 : x
  2. Step 2: Convert to fraction form
    609,985.20/914,977.80 = 189,303.60/x
  3. Step 3: Cross multiply
    609,985.20x = 914,977.80 × 189,303.60
  4. Step 4: Simplify right side
    609,985.20x = 173,208,591,460.08
  5. Step 5: Solve for x
    x = 173,208,591,460.08/609,985.20
  6. Step 6: Final answer
    x = 283,955.40

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Double scale
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Similar ratio
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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.