Home / 639,104.99-882,620.96-530,602.25

Finding the Fourth Proportional to 639,104.99, 882,620.96 and 530,602.25

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Solution

The fourth proportional to 639,104.99, 882,620.96 and 530,602.25 is: 732,775.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,104.99 : 882,620.96 = 530,602.25 : x
  2. Step 2: Convert to fraction form
    639,104.99/882,620.96 = 530,602.25/x
  3. Step 3: Cross multiply
    639,104.99x = 882,620.96 × 530,602.25
  4. Step 4: Simplify right side
    639,104.99x = 468,320,660,207.04
  5. Step 5: Solve for x
    x = 468,320,660,207.04/639,104.99
  6. Step 6: Final answer
    x = 732,775.79

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Double scale
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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.