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Finding the Fourth Proportional to 368,415.81, 508,372.61 and 207,326.25

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Solution

The fourth proportional to 368,415.81, 508,372.61 and 207,326.25 is: 286,087.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,415.81 : 508,372.61 = 207,326.25 : x
  2. Step 2: Convert to fraction form
    368,415.81/508,372.61 = 207,326.25/x
  3. Step 3: Cross multiply
    368,415.81x = 508,372.61 × 207,326.25
  4. Step 4: Simplify right side
    368,415.81x = 105,398,985,797.38
  5. Step 5: Solve for x
    x = 105,398,985,797.38/368,415.81
  6. Step 6: Final answer
    x = 286,087.03

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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.