Home / 1,117,279.40-1,675,919.10-407,330.60

Finding the Fourth Proportional to 1,117,279.40, 1,675,919.10 and 407,330.60

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Solution

The fourth proportional to 1,117,279.40, 1,675,919.10 and 407,330.60 is: 610,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,279.40 : 1,675,919.10 = 407,330.60 : x
  2. Step 2: Convert to fraction form
    1,117,279.40/1,675,919.10 = 407,330.60/x
  3. Step 3: Cross multiply
    1,117,279.40x = 1,675,919.10 × 407,330.60
  4. Step 4: Simplify right side
    1,117,279.40x = 682,653,132,554.46
  5. Step 5: Solve for x
    x = 682,653,132,554.46/1,117,279.40
  6. Step 6: Final answer
    x = 610,995.90

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Double scale
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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.