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Finding the Fourth Proportional to 286,616.60, 429,924.90 and 286,616.60

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Solution

The fourth proportional to 286,616.60, 429,924.90 and 286,616.60 is: 429,924.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,616.60 : 429,924.90 = 286,616.60 : x
  2. Step 2: Convert to fraction form
    286,616.60/429,924.90 = 286,616.60/x
  3. Step 3: Cross multiply
    286,616.60x = 429,924.90 × 286,616.60
  4. Step 4: Simplify right side
    286,616.60x = 123,223,613,093.34
  5. Step 5: Solve for x
    x = 123,223,613,093.34/286,616.60
  6. Step 6: Final answer
    x = 429,924.90

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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.