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Finding the Fourth Proportional to 448,047.60, 672,071.40 and 322,076.40

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Solution

The fourth proportional to 448,047.60, 672,071.40 and 322,076.40 is: 483,114.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,047.60 : 672,071.40 = 322,076.40 : x
  2. Step 2: Convert to fraction form
    448,047.60/672,071.40 = 322,076.40/x
  3. Step 3: Cross multiply
    448,047.60x = 672,071.40 × 322,076.40
  4. Step 4: Simplify right side
    448,047.60x = 216,458,337,054.96
  5. Step 5: Solve for x
    x = 216,458,337,054.96/448,047.60
  6. Step 6: Final answer
    x = 483,114.60

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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.