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Finding the Fourth Proportional to 403,598.28, 556,980.36 and 250,720.86

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Solution

The fourth proportional to 403,598.28, 556,980.36 and 250,720.86 is: 346,003.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,598.28 : 556,980.36 = 250,720.86 : x
  2. Step 2: Convert to fraction form
    403,598.28/556,980.36 = 250,720.86/x
  3. Step 3: Cross multiply
    403,598.28x = 556,980.36 × 250,720.86
  4. Step 4: Simplify right side
    403,598.28x = 139,646,594,862.31
  5. Step 5: Solve for x
    x = 139,646,594,862.31/403,598.28
  6. Step 6: Final answer
    x = 346,003.94

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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.