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Finding the Fourth Proportional to 636,205.67, 877,941.51 and 349,723.70

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Solution

The fourth proportional to 636,205.67, 877,941.51 and 349,723.70 is: 482,606.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,205.67 : 877,941.51 = 349,723.70 : x
  2. Step 2: Convert to fraction form
    636,205.67/877,941.51 = 349,723.70/x
  3. Step 3: Cross multiply
    636,205.67x = 877,941.51 × 349,723.70
  4. Step 4: Simplify right side
    636,205.67x = 307,036,953,260.79
  5. Step 5: Solve for x
    x = 307,036,953,260.79/636,205.67
  6. Step 6: Final answer
    x = 482,606.44

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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.