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Finding the Fourth Proportional to 506,806.28, 760,429.90 and 317,700.04

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Solution

The fourth proportional to 506,806.28, 760,429.90 and 317,700.04 is: 476,688.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,806.28 : 760,429.90 = 317,700.04 : x
  2. Step 2: Convert to fraction form
    506,806.28/760,429.90 = 317,700.04/x
  3. Step 3: Cross multiply
    506,806.28x = 760,429.90 × 317,700.04
  4. Step 4: Simplify right side
    506,806.28x = 241,588,609,647.20
  5. Step 5: Solve for x
    x = 241,588,609,647.20/506,806.28
  6. Step 6: Final answer
    x = 476,688.27

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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.