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Finding the Fourth Proportional to 338,730, 507,934.11 and 196,619.13

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Solution

The fourth proportional to 338,730, 507,934.11 and 196,619.13 is: 294,835.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,730 : 507,934.11 = 196,619.13 : x
  2. Step 2: Convert to fraction form
    338,730/507,934.11 = 196,619.13/x
  3. Step 3: Cross multiply
    338,730x = 507,934.11 × 196,619.13
  4. Step 4: Simplify right side
    338,730x = 99,869,562,805.52
  5. Step 5: Solve for x
    x = 99,869,562,805.52/338,730
  6. Step 6: Final answer
    x = 294,835.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.