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Finding the Fourth Proportional to 626,690.12, 940,075.16 and 177,446.40

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Solution

The fourth proportional to 626,690.12, 940,075.16 and 177,446.40 is: 266,180.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,690.12 : 940,075.16 = 177,446.40 : x
  2. Step 2: Convert to fraction form
    626,690.12/940,075.16 = 177,446.40/x
  3. Step 3: Cross multiply
    626,690.12x = 940,075.16 × 177,446.40
  4. Step 4: Simplify right side
    626,690.12x = 166,812,952,871.42
  5. Step 5: Solve for x
    x = 166,812,952,871.42/626,690.12
  6. Step 6: Final answer
    x = 266,180.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.