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Finding the Fourth Proportional to 586,168.87, 808,913.04 and 317,896.87

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Solution

The fourth proportional to 586,168.87, 808,913.04 and 317,896.87 is: 438,697.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,168.87 : 808,913.04 = 317,896.87 : x
  2. Step 2: Convert to fraction form
    586,168.87/808,913.04 = 317,896.87/x
  3. Step 3: Cross multiply
    586,168.87x = 808,913.04 × 317,896.87
  4. Step 4: Simplify right side
    586,168.87x = 257,150,923,518.19
  5. Step 5: Solve for x
    x = 257,150,923,518.19/586,168.87
  6. Step 6: Final answer
    x = 438,697.68

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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.