Home / 639,526.07-882,540.56-353,040

Finding the Fourth Proportional to 639,526.07, 882,540.56 and 353,040

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Solution

The fourth proportional to 639,526.07, 882,540.56 and 353,040 is: 487,192.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,526.07 : 882,540.56 = 353,040 : x
  2. Step 2: Convert to fraction form
    639,526.07/882,540.56 = 353,040/x
  3. Step 3: Cross multiply
    639,526.07x = 882,540.56 × 353,040
  4. Step 4: Simplify right side
    639,526.07x = 311,572,117,537.20
  5. Step 5: Solve for x
    x = 311,572,117,537.20/639,526.07
  6. Step 6: Final answer
    x = 487,192.21

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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.