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Finding the Fourth Proportional to 403,293.12, 604,939.64 and 376,718.64

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Solution

The fourth proportional to 403,293.12, 604,939.64 and 376,718.64 is: 565,077.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,293.12 : 604,939.64 = 376,718.64 : x
  2. Step 2: Convert to fraction form
    403,293.12/604,939.64 = 376,718.64/x
  3. Step 3: Cross multiply
    403,293.12x = 604,939.64 × 376,718.64
  4. Step 4: Simplify right side
    403,293.12x = 227,892,038,462.89
  5. Step 5: Solve for x
    x = 227,892,038,462.89/403,293.12
  6. Step 6: Final answer
    x = 565,077.92

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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.