Home / 736,014.20-1,015,705.20-409,331.78

Finding the Fourth Proportional to 736,014.20, 1,015,705.20 and 409,331.78

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Solution

The fourth proportional to 736,014.20, 1,015,705.20 and 409,331.78 is: 564,880.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,014.20 : 1,015,705.20 = 409,331.78 : x
  2. Step 2: Convert to fraction form
    736,014.20/1,015,705.20 = 409,331.78/x
  3. Step 3: Cross multiply
    736,014.20x = 1,015,705.20 × 409,331.78
  4. Step 4: Simplify right side
    736,014.20x = 415,760,417,471.26
  5. Step 5: Solve for x
    x = 415,760,417,471.26/736,014.20
  6. Step 6: Final answer
    x = 564,880.97

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Half scale
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Double scale
Find fourth proportional to 736,015.20, 1,015,706.58 and 409,332.78
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.