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Finding the Fourth Proportional to 664,326.30, 996,619.05 and 285,246.30

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Solution

The fourth proportional to 664,326.30, 996,619.05 and 285,246.30 is: 427,925.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,326.30 : 996,619.05 = 285,246.30 : x
  2. Step 2: Convert to fraction form
    664,326.30/996,619.05 = 285,246.30/x
  3. Step 3: Cross multiply
    664,326.30x = 996,619.05 × 285,246.30
  4. Step 4: Simplify right side
    664,326.30x = 284,281,896,522.02
  5. Step 5: Solve for x
    x = 284,281,896,522.02/664,326.30
  6. Step 6: Final answer
    x = 427,925.10

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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.