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Finding the Fourth Proportional to 508,448.44, 701,656.91 and 279,009.56

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Solution

The fourth proportional to 508,448.44, 701,656.91 and 279,009.56 is: 385,032.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,448.44 : 701,656.91 = 279,009.56 : x
  2. Step 2: Convert to fraction form
    508,448.44/701,656.91 = 279,009.56/x
  3. Step 3: Cross multiply
    508,448.44x = 701,656.91 × 279,009.56
  4. Step 4: Simplify right side
    508,448.44x = 195,768,985,730.06
  5. Step 5: Solve for x
    x = 195,768,985,730.06/508,448.44
  6. Step 6: Final answer
    x = 385,032.13

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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.