Home / 553,721.10-830,581.65-273,785.10

Finding the Fourth Proportional to 553,721.10, 830,581.65 and 273,785.10

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Solution

The fourth proportional to 553,721.10, 830,581.65 and 273,785.10 is: 410,677.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,721.10 : 830,581.65 = 273,785.10 : x
  2. Step 2: Convert to fraction form
    553,721.10/830,581.65 = 273,785.10/x
  3. Step 3: Cross multiply
    553,721.10x = 830,581.65 × 273,785.10
  4. Step 4: Simplify right side
    553,721.10x = 227,400,880,103.42
  5. Step 5: Solve for x
    x = 227,400,880,103.42/553,721.10
  6. Step 6: Final answer
    x = 410,677.65

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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.