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Finding the Fourth Proportional to 608,624.90, 839,927.09 and 336,688.11

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Solution

The fourth proportional to 608,624.90, 839,927.09 and 336,688.11 is: 464,643.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,624.90 : 839,927.09 = 336,688.11 : x
  2. Step 2: Convert to fraction form
    608,624.90/839,927.09 = 336,688.11/x
  3. Step 3: Cross multiply
    608,624.90x = 839,927.09 × 336,688.11
  4. Step 4: Simplify right side
    608,624.90x = 282,793,462,370.08
  5. Step 5: Solve for x
    x = 282,793,462,370.08/608,624.90
  6. Step 6: Final answer
    x = 464,643.27

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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.