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Finding the Fourth Proportional to 340,404.60, 510,606.90 and 191,105.40

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Solution

The fourth proportional to 340,404.60, 510,606.90 and 191,105.40 is: 286,658.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,404.60 : 510,606.90 = 191,105.40 : x
  2. Step 2: Convert to fraction form
    340,404.60/510,606.90 = 191,105.40/x
  3. Step 3: Cross multiply
    340,404.60x = 510,606.90 × 191,105.40
  4. Step 4: Simplify right side
    340,404.60x = 97,579,735,867.26
  5. Step 5: Solve for x
    x = 97,579,735,867.26/340,404.60
  6. Step 6: Final answer
    x = 286,658.10

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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.