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Finding the Fourth Proportional to 832,816.80, 1,249,038 and 383,105.88

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Solution

The fourth proportional to 832,816.80, 1,249,038 and 383,105.88 is: 574,572.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,816.80 : 1,249,038 = 383,105.88 : x
  2. Step 2: Convert to fraction form
    832,816.80/1,249,038 = 383,105.88/x
  3. Step 3: Cross multiply
    832,816.80x = 1,249,038 × 383,105.88
  4. Step 4: Simplify right side
    832,816.80x = 478,513,802,143.44
  5. Step 5: Solve for x
    x = 478,513,802,143.44/832,816.80
  6. Step 6: Final answer
    x = 574,572.71

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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.