Home / 912,401.80-1,368,602.70-822,200.20

Finding the Fourth Proportional to 912,401.80, 1,368,602.70 and 822,200.20

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Solution

The fourth proportional to 912,401.80, 1,368,602.70 and 822,200.20 is: 1,233,300.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,401.80 : 1,368,602.70 = 822,200.20 : x
  2. Step 2: Convert to fraction form
    912,401.80/1,368,602.70 = 822,200.20/x
  3. Step 3: Cross multiply
    912,401.80x = 1,368,602.70 × 822,200.20
  4. Step 4: Simplify right side
    912,401.80x = 1,125,265,413,660.54
  5. Step 5: Solve for x
    x = 1,125,265,413,660.54/912,401.80
  6. Step 6: Final answer
    x = 1,233,300.30

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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.