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Finding the Fourth Proportional to 407,788.90, 610,516.95 and 407,788.90

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Solution

The fourth proportional to 407,788.90, 610,516.95 and 407,788.90 is: 610,516.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,788.90 : 610,516.95 = 407,788.90 : x
  2. Step 2: Convert to fraction form
    407,788.90/610,516.95 = 407,788.90/x
  3. Step 3: Cross multiply
    407,788.90x = 610,516.95 × 407,788.90
  4. Step 4: Simplify right side
    407,788.90x = 248,962,035,471.86
  5. Step 5: Solve for x
    x = 248,962,035,471.86/407,788.90
  6. Step 6: Final answer
    x = 610,516.95

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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.