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Finding the Fourth Proportional to 482,062.24, 665,263.20 and 291,038.56

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Solution

The fourth proportional to 482,062.24, 665,263.20 and 291,038.56 is: 401,643.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,062.24 : 665,263.20 = 291,038.56 : x
  2. Step 2: Convert to fraction form
    482,062.24/665,263.20 = 291,038.56/x
  3. Step 3: Cross multiply
    482,062.24x = 665,263.20 × 291,038.56
  4. Step 4: Simplify right side
    482,062.24x = 193,617,243,748.99
  5. Step 5: Solve for x
    x = 193,617,243,748.99/482,062.24
  6. Step 6: Final answer
    x = 401,643.66

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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.