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Finding the Fourth Proportional to 404,722.26, 607,109.64 and 134,838.90

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Solution

The fourth proportional to 404,722.26, 607,109.64 and 134,838.90 is: 202,267.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,722.26 : 607,109.64 = 134,838.90 : x
  2. Step 2: Convert to fraction form
    404,722.26/607,109.64 = 134,838.90/x
  3. Step 3: Cross multiply
    404,722.26x = 607,109.64 × 134,838.90
  4. Step 4: Simplify right side
    404,722.26x = 81,861,996,037.00
  5. Step 5: Solve for x
    x = 81,861,996,037.00/404,722.26
  6. Step 6: Final answer
    x = 202,267.10

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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.