Home / 839,063.80-1,258,595.70-278,098.30

Finding the Fourth Proportional to 839,063.80, 1,258,595.70 and 278,098.30

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Solution

The fourth proportional to 839,063.80, 1,258,595.70 and 278,098.30 is: 417,147.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,063.80 : 1,258,595.70 = 278,098.30 : x
  2. Step 2: Convert to fraction form
    839,063.80/1,258,595.70 = 278,098.30/x
  3. Step 3: Cross multiply
    839,063.80x = 1,258,595.70 × 278,098.30
  4. Step 4: Simplify right side
    839,063.80x = 350,013,324,557.31
  5. Step 5: Solve for x
    x = 350,013,324,557.31/839,063.80
  6. Step 6: Final answer
    x = 417,147.45

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Half scale
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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.