Home / 824,803.65-1,235,594.73-391,905.03

Finding the Fourth Proportional to 824,803.65, 1,235,594.73 and 391,905.03

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Solution

The fourth proportional to 824,803.65, 1,235,594.73 and 391,905.03 is: 587,092.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,803.65 : 1,235,594.73 = 391,905.03 : x
  2. Step 2: Convert to fraction form
    824,803.65/1,235,594.73 = 391,905.03/x
  3. Step 3: Cross multiply
    824,803.65x = 1,235,594.73 × 391,905.03
  4. Step 4: Simplify right side
    824,803.65x = 484,235,789,728.49
  5. Step 5: Solve for x
    x = 484,235,789,728.49/824,803.65
  6. Step 6: Final answer
    x = 587,092.20

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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.