Home / 1,205,945.70-1,808,918.55-307,385.70

Finding the Fourth Proportional to 1,205,945.70, 1,808,918.55 and 307,385.70

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Solution

The fourth proportional to 1,205,945.70, 1,808,918.55 and 307,385.70 is: 461,078.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,945.70 : 1,808,918.55 = 307,385.70 : x
  2. Step 2: Convert to fraction form
    1,205,945.70/1,808,918.55 = 307,385.70/x
  3. Step 3: Cross multiply
    1,205,945.70x = 1,808,918.55 × 307,385.70
  4. Step 4: Simplify right side
    1,205,945.70x = 556,035,694,734.74
  5. Step 5: Solve for x
    x = 556,035,694,734.74/1,205,945.70
  6. Step 6: Final answer
    x = 461,078.55

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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.