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Finding the Fourth Proportional to 368,441.46, 508,447.13 and 207,297.63

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Solution

The fourth proportional to 368,441.46, 508,447.13 and 207,297.63 is: 286,069.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,441.46 : 508,447.13 = 207,297.63 : x
  2. Step 2: Convert to fraction form
    368,441.46/508,447.13 = 207,297.63/x
  3. Step 3: Cross multiply
    368,441.46x = 508,447.13 × 207,297.63
  4. Step 4: Simplify right side
    368,441.46x = 105,399,883,992.81
  5. Step 5: Solve for x
    x = 105,399,883,992.81/368,441.46
  6. Step 6: Final answer
    x = 286,069.55

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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.