Home / 639,556.38-959,258.16-497,543.40

Finding the Fourth Proportional to 639,556.38, 959,258.16 and 497,543.40

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Solution

The fourth proportional to 639,556.38, 959,258.16 and 497,543.40 is: 746,255.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,556.38 : 959,258.16 = 497,543.40 : x
  2. Step 2: Convert to fraction form
    639,556.38/959,258.16 = 497,543.40/x
  3. Step 3: Cross multiply
    639,556.38x = 959,258.16 × 497,543.40
  4. Step 4: Simplify right side
    639,556.38x = 477,272,566,404.14
  5. Step 5: Solve for x
    x = 477,272,566,404.14/639,556.38
  6. Step 6: Final answer
    x = 746,255.66

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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.