Home / 639,586.60-882,632.10-349,199.08

Finding the Fourth Proportional to 639,586.60, 882,632.10 and 349,199.08

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Solution

The fourth proportional to 639,586.60, 882,632.10 and 349,199.08 is: 481,896.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,586.60 : 882,632.10 = 349,199.08 : x
  2. Step 2: Convert to fraction form
    639,586.60/882,632.10 = 349,199.08/x
  3. Step 3: Cross multiply
    639,586.60x = 882,632.10 × 349,199.08
  4. Step 4: Simplify right side
    639,586.60x = 308,214,317,298.47
  5. Step 5: Solve for x
    x = 308,214,317,298.47/639,586.60
  6. Step 6: Final answer
    x = 481,896.15

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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.