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Finding the Fourth Proportional to 366,490.95, 549,718.20 and 189,015.90

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Solution

The fourth proportional to 366,490.95, 549,718.20 and 189,015.90 is: 283,514.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,490.95 : 549,718.20 = 189,015.90 : x
  2. Step 2: Convert to fraction form
    366,490.95/549,718.20 = 189,015.90/x
  3. Step 3: Cross multiply
    366,490.95x = 549,718.20 × 189,015.90
  4. Step 4: Simplify right side
    366,490.95x = 103,905,480,319.38
  5. Step 5: Solve for x
    x = 103,905,480,319.38/366,490.95
  6. Step 6: Final answer
    x = 283,514.45

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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.