Home / 607,427.10-911,140.65-186,648.30

Finding the Fourth Proportional to 607,427.10, 911,140.65 and 186,648.30

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Solution

The fourth proportional to 607,427.10, 911,140.65 and 186,648.30 is: 279,972.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,427.10 : 911,140.65 = 186,648.30 : x
  2. Step 2: Convert to fraction form
    607,427.10/911,140.65 = 186,648.30/x
  3. Step 3: Cross multiply
    607,427.10x = 911,140.65 × 186,648.30
  4. Step 4: Simplify right side
    607,427.10x = 170,062,853,383.40
  5. Step 5: Solve for x
    x = 170,062,853,383.40/607,427.10
  6. Step 6: Final answer
    x = 279,972.45

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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.