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Finding the Fourth Proportional to 635,890.14, 877,549.95 and 349,420.50

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Solution

The fourth proportional to 635,890.14, 877,549.95 and 349,420.50 is: 482,212.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,890.14 : 877,549.95 = 349,420.50 : x
  2. Step 2: Convert to fraction form
    635,890.14/877,549.95 = 349,420.50/x
  3. Step 3: Cross multiply
    635,890.14x = 877,549.95 × 349,420.50
  4. Step 4: Simplify right side
    635,890.14x = 306,633,942,303.98
  5. Step 5: Solve for x
    x = 306,633,942,303.98/635,890.14
  6. Step 6: Final answer
    x = 482,212.14

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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.