Home / 663,066.30-995,466.69-393,686.22

Finding the Fourth Proportional to 663,066.30, 995,466.69 and 393,686.22

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Solution

The fourth proportional to 663,066.30, 995,466.69 and 393,686.22 is: 591,044.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,066.30 : 995,466.69 = 393,686.22 : x
  2. Step 2: Convert to fraction form
    663,066.30/995,466.69 = 393,686.22/x
  3. Step 3: Cross multiply
    663,066.30x = 995,466.69 × 393,686.22
  4. Step 4: Simplify right side
    663,066.30x = 391,901,518,322.01
  5. Step 5: Solve for x
    x = 391,901,518,322.01/663,066.30
  6. Step 6: Final answer
    x = 591,044.24

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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.