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Finding the Fourth Proportional to 7,230,598.25, 9,978,538.01 and 4,329,435.20

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Solution

The fourth proportional to 7,230,598.25, 9,978,538.01 and 4,329,435.20 is: 5,974,807.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,230,598.25 : 9,978,538.01 = 4,329,435.20 : x
  2. Step 2: Convert to fraction form
    7,230,598.25/9,978,538.01 = 4,329,435.20/x
  3. Step 3: Cross multiply
    7,230,598.25x = 9,978,538.01 × 4,329,435.20
  4. Step 4: Simplify right side
    7,230,598.25x = 43,201,433,633,492.09
  5. Step 5: Solve for x
    x = 43,201,433,633,492.09/7,230,598.25
  6. Step 6: Final answer
    x = 5,974,807.64

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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.