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Finding the Fourth Proportional to 404,905.40, 607,905.30 and 236,598.20

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Solution

The fourth proportional to 404,905.40, 607,905.30 and 236,598.20 is: 355,217.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,905.40 : 607,905.30 = 236,598.20 : x
  2. Step 2: Convert to fraction form
    404,905.40/607,905.30 = 236,598.20/x
  3. Step 3: Cross multiply
    404,905.40x = 607,905.30 × 236,598.20
  4. Step 4: Simplify right side
    404,905.40x = 143,829,299,750.46
  5. Step 5: Solve for x
    x = 143,829,299,750.46/404,905.40
  6. Step 6: Final answer
    x = 355,217.05

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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.