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Finding the Fourth Proportional to 368,287.15, 549,731.47 and 341,238.52

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Solution

The fourth proportional to 368,287.15, 549,731.47 and 341,238.52 is: 509,356.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,287.15 : 549,731.47 = 341,238.52 : x
  2. Step 2: Convert to fraction form
    368,287.15/549,731.47 = 341,238.52/x
  3. Step 3: Cross multiply
    368,287.15x = 549,731.47 × 341,238.52
  4. Step 4: Simplify right side
    368,287.15x = 187,589,553,220.22
  5. Step 5: Solve for x
    x = 187,589,553,220.22/368,287.15
  6. Step 6: Final answer
    x = 509,356.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.