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Finding the Fourth Proportional to 403,412.46, 604,894.66 and 187,034.72

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Solution

The fourth proportional to 403,412.46, 604,894.66 and 187,034.72 is: 280,448.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,412.46 : 604,894.66 = 187,034.72 : x
  2. Step 2: Convert to fraction form
    403,412.46/604,894.66 = 187,034.72/x
  3. Step 3: Cross multiply
    403,412.46x = 604,894.66 × 187,034.72
  4. Step 4: Simplify right side
    403,412.46x = 113,136,303,362.60
  5. Step 5: Solve for x
    x = 113,136,303,362.60/403,412.46
  6. Step 6: Final answer
    x = 280,448.21

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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.