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Finding the Fourth Proportional to 365,718.24, 503,569.08 and 320,141.16

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Solution

The fourth proportional to 365,718.24, 503,569.08 and 320,141.16 is: 440,812.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,718.24 : 503,569.08 = 320,141.16 : x
  2. Step 2: Convert to fraction form
    365,718.24/503,569.08 = 320,141.16/x
  3. Step 3: Cross multiply
    365,718.24x = 503,569.08 × 320,141.16
  4. Step 4: Simplify right side
    365,718.24x = 161,213,189,411.33
  5. Step 5: Solve for x
    x = 161,213,189,411.33/365,718.24
  6. Step 6: Final answer
    x = 440,812.55

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1.5x scale

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.