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Finding the Fourth Proportional to 644,803.40, 966,744.30 and 289,526.60

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Solution

The fourth proportional to 644,803.40, 966,744.30 and 289,526.60 is: 434,082.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,803.40 : 966,744.30 = 289,526.60 : x
  2. Step 2: Convert to fraction form
    644,803.40/966,744.30 = 289,526.60/x
  3. Step 3: Cross multiply
    644,803.40x = 966,744.30 × 289,526.60
  4. Step 4: Simplify right side
    644,803.40x = 279,898,190,248.38
  5. Step 5: Solve for x
    x = 279,898,190,248.38/644,803.40
  6. Step 6: Final answer
    x = 434,082.99

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1.5x scale

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.