Home / 927,140.60-1,390,710.90-336,087.80

Finding the Fourth Proportional to 927,140.60, 1,390,710.90 and 336,087.80

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Solution

The fourth proportional to 927,140.60, 1,390,710.90 and 336,087.80 is: 504,131.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,140.60 : 1,390,710.90 = 336,087.80 : x
  2. Step 2: Convert to fraction form
    927,140.60/1,390,710.90 = 336,087.80/x
  3. Step 3: Cross multiply
    927,140.60x = 1,390,710.90 × 336,087.80
  4. Step 4: Simplify right side
    927,140.60x = 467,400,966,817.02
  5. Step 5: Solve for x
    x = 467,400,966,817.02/927,140.60
  6. Step 6: Final answer
    x = 504,131.70

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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.