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Finding the Fourth Proportional to 649,563.84, 974,345.76 and 228,741.12

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Solution

The fourth proportional to 649,563.84, 974,345.76 and 228,741.12 is: 343,111.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,563.84 : 974,345.76 = 228,741.12 : x
  2. Step 2: Convert to fraction form
    649,563.84/974,345.76 = 228,741.12/x
  3. Step 3: Cross multiply
    649,563.84x = 974,345.76 × 228,741.12
  4. Step 4: Simplify right side
    649,563.84x = 222,872,940,409.65
  5. Step 5: Solve for x
    x = 222,872,940,409.65/649,563.84
  6. Step 6: Final answer
    x = 343,111.68

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Double scale
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Similar ratio
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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.