Home / 685,774.40-1,028,661.60-242,542.40

Finding the Fourth Proportional to 685,774.40, 1,028,661.60 and 242,542.40

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Solution

The fourth proportional to 685,774.40, 1,028,661.60 and 242,542.40 is: 363,813.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,774.40 : 1,028,661.60 = 242,542.40 : x
  2. Step 2: Convert to fraction form
    685,774.40/1,028,661.60 = 242,542.40/x
  3. Step 3: Cross multiply
    685,774.40x = 1,028,661.60 × 242,542.40
  4. Step 4: Simplify right side
    685,774.40x = 249,494,053,251.84
  5. Step 5: Solve for x
    x = 249,494,053,251.84/685,774.40
  6. Step 6: Final answer
    x = 363,813.60

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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.