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Finding the Fourth Proportional to 426,406.66, 588,437.38 and 235,415.94

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Solution

The fourth proportional to 426,406.66, 588,437.38 and 235,415.94 is: 324,871.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,406.66 : 588,437.38 = 235,415.94 : x
  2. Step 2: Convert to fraction form
    426,406.66/588,437.38 = 235,415.94/x
  3. Step 3: Cross multiply
    426,406.66x = 588,437.38 × 235,415.94
  4. Step 4: Simplify right side
    426,406.66x = 138,527,538,943.84
  5. Step 5: Solve for x
    x = 138,527,538,943.84/426,406.66
  6. Step 6: Final answer
    x = 324,871.89

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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.