Home / 639,475.76-882,739.34-436,197.68

Finding the Fourth Proportional to 639,475.76, 882,739.34 and 436,197.68

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Solution

The fourth proportional to 639,475.76, 882,739.34 and 436,197.68 is: 602,132.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,475.76 : 882,739.34 = 436,197.68 : x
  2. Step 2: Convert to fraction form
    639,475.76/882,739.34 = 436,197.68/x
  3. Step 3: Cross multiply
    639,475.76x = 882,739.34 × 436,197.68
  4. Step 4: Simplify right side
    639,475.76x = 385,048,852,152.73
  5. Step 5: Solve for x
    x = 385,048,852,152.73/639,475.76
  6. Step 6: Final answer
    x = 602,132.05

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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.