Home / 746,443.80-1,119,665.70-613,474.20

Finding the Fourth Proportional to 746,443.80, 1,119,665.70 and 613,474.20

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Solution

The fourth proportional to 746,443.80, 1,119,665.70 and 613,474.20 is: 920,211.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,443.80 : 1,119,665.70 = 613,474.20 : x
  2. Step 2: Convert to fraction form
    746,443.80/1,119,665.70 = 613,474.20/x
  3. Step 3: Cross multiply
    746,443.80x = 1,119,665.70 × 613,474.20
  4. Step 4: Simplify right side
    746,443.80x = 686,886,019,574.94
  5. Step 5: Solve for x
    x = 686,886,019,574.94/746,443.80
  6. Step 6: Final answer
    x = 920,211.30

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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.