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Finding the Fourth Proportional to 470,648.18, 649,499.51 and 255,788.26

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Solution

The fourth proportional to 470,648.18, 649,499.51 and 255,788.26 is: 352,990.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,648.18 : 649,499.51 = 255,788.26 : x
  2. Step 2: Convert to fraction form
    470,648.18/649,499.51 = 255,788.26/x
  3. Step 3: Cross multiply
    470,648.18x = 649,499.51 × 255,788.26
  4. Step 4: Simplify right side
    470,648.18x = 166,134,349,533.75
  5. Step 5: Solve for x
    x = 166,134,349,533.75/470,648.18
  6. Step 6: Final answer
    x = 352,990.53

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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.