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Finding the Fourth Proportional to 636,178.69, 877,928.41 and 364,250.75

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Solution

The fourth proportional to 636,178.69, 877,928.41 and 364,250.75 is: 502,667.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,178.69 : 877,928.41 = 364,250.75 : x
  2. Step 2: Convert to fraction form
    636,178.69/877,928.41 = 364,250.75/x
  3. Step 3: Cross multiply
    636,178.69x = 877,928.41 × 364,250.75
  4. Step 4: Simplify right side
    636,178.69x = 319,786,084,438.94
  5. Step 5: Solve for x
    x = 319,786,084,438.94/636,178.69
  6. Step 6: Final answer
    x = 502,667.08

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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.