Home / 685,355.24-946,219.56-440,439.32

Finding the Fourth Proportional to 685,355.24, 946,219.56 and 440,439.32

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Solution

The fourth proportional to 685,355.24, 946,219.56 and 440,439.32 is: 608,082.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,355.24 : 946,219.56 = 440,439.32 : x
  2. Step 2: Convert to fraction form
    685,355.24/946,219.56 = 440,439.32/x
  3. Step 3: Cross multiply
    685,355.24x = 946,219.56 × 440,439.32
  4. Step 4: Simplify right side
    685,355.24x = 416,752,299,577.10
  5. Step 5: Solve for x
    x = 416,752,299,577.10/685,355.24
  6. Step 6: Final answer
    x = 608,082.17

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.