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Finding the Fourth Proportional to 317,087.46, 437,526.90 and 209,600.01

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Solution

The fourth proportional to 317,087.46, 437,526.90 and 209,600.01 is: 289,212.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,087.46 : 437,526.90 = 209,600.01 : x
  2. Step 2: Convert to fraction form
    317,087.46/437,526.90 = 209,600.01/x
  3. Step 3: Cross multiply
    317,087.46x = 437,526.90 × 209,600.01
  4. Step 4: Simplify right side
    317,087.46x = 91,705,642,615.27
  5. Step 5: Solve for x
    x = 91,705,642,615.27/317,087.46
  6. Step 6: Final answer
    x = 289,212.45

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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.