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Finding the Fourth Proportional to 470,874.14, 649,832.86 and 256,009.58

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Solution

The fourth proportional to 470,874.14, 649,832.86 and 256,009.58 is: 353,307.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,874.14 : 649,832.86 = 256,009.58 : x
  2. Step 2: Convert to fraction form
    470,874.14/649,832.86 = 256,009.58/x
  3. Step 3: Cross multiply
    470,874.14x = 649,832.86 × 256,009.58
  4. Step 4: Simplify right side
    470,874.14x = 166,363,437,558.80
  5. Step 5: Solve for x
    x = 166,363,437,558.80/470,874.14
  6. Step 6: Final answer
    x = 353,307.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.