Home / 1,431,402.56-1,975,339.64-819,564.71

Finding the Fourth Proportional to 1,431,402.56, 1,975,339.64 and 819,564.71

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Solution

The fourth proportional to 1,431,402.56, 1,975,339.64 and 819,564.71 is: 1,131,001.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,402.56 : 1,975,339.64 = 819,564.71 : x
  2. Step 2: Convert to fraction form
    1,431,402.56/1,975,339.64 = 819,564.71/x
  3. Step 3: Cross multiply
    1,431,402.56x = 1,975,339.64 × 819,564.71
  4. Step 4: Simplify right side
    1,431,402.56x = 1,618,918,655,714.47
  5. Step 5: Solve for x
    x = 1,618,918,655,714.47/1,431,402.56
  6. Step 6: Final answer
    x = 1,131,001.65

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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.