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Finding the Fourth Proportional to 673,298.08, 929,196.88 and 386,932.32

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Solution

The fourth proportional to 673,298.08, 929,196.88 and 386,932.32 is: 533,992.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,298.08 : 929,196.88 = 386,932.32 : x
  2. Step 2: Convert to fraction form
    673,298.08/929,196.88 = 386,932.32/x
  3. Step 3: Cross multiply
    673,298.08x = 929,196.88 × 386,932.32
  4. Step 4: Simplify right side
    673,298.08x = 359,536,304,515.16
  5. Step 5: Solve for x
    x = 359,536,304,515.16/673,298.08
  6. Step 6: Final answer
    x = 533,992.77

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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.