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Finding the Fourth Proportional to 470,635.77, 649,482.39 and 255,775.83

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Solution

The fourth proportional to 470,635.77, 649,482.39 and 255,775.83 is: 352,973.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,635.77 : 649,482.39 = 255,775.83 : x
  2. Step 2: Convert to fraction form
    470,635.77/649,482.39 = 255,775.83/x
  3. Step 3: Cross multiply
    470,635.77x = 649,482.39 × 255,775.83
  4. Step 4: Simplify right side
    470,635.77x = 166,121,897,372.63
  5. Step 5: Solve for x
    x = 166,121,897,372.63/470,635.77
  6. Step 6: Final answer
    x = 352,973.38

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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.