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Finding the Fourth Proportional to 492,412.76, 679,529.40 and 266,058.26

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Solution

The fourth proportional to 492,412.76, 679,529.40 and 266,058.26 is: 367,160.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,412.76 : 679,529.40 = 266,058.26 : x
  2. Step 2: Convert to fraction form
    492,412.76/679,529.40 = 266,058.26/x
  3. Step 3: Cross multiply
    492,412.76x = 679,529.40 × 266,058.26
  4. Step 4: Simplify right side
    492,412.76x = 180,794,406,385.20
  5. Step 5: Solve for x
    x = 180,794,406,385.20/492,412.76
  6. Step 6: Final answer
    x = 367,160.28

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1.5x scale

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.