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Finding the Fourth Proportional to 492,426.84, 679,547.97 and 266,072.34

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Solution

The fourth proportional to 492,426.84, 679,547.97 and 266,072.34 is: 367,179.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,426.84 : 679,547.97 = 266,072.34 : x
  2. Step 2: Convert to fraction form
    492,426.84/679,547.97 = 266,072.34/x
  3. Step 3: Cross multiply
    492,426.84x = 679,547.97 × 266,072.34
  4. Step 4: Simplify right side
    492,426.84x = 180,808,918,520.15
  5. Step 5: Solve for x
    x = 180,808,918,520.15/492,426.84
  6. Step 6: Final answer
    x = 367,179.25

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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.