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Finding the Fourth Proportional to 637,007.81, 879,085.40 and 361,384.11

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Solution

The fourth proportional to 637,007.81, 879,085.40 and 361,384.11 is: 498,718.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,007.81 : 879,085.40 = 361,384.11 : x
  2. Step 2: Convert to fraction form
    637,007.81/879,085.40 = 361,384.11/x
  3. Step 3: Cross multiply
    637,007.81x = 879,085.40 × 361,384.11
  4. Step 4: Simplify right side
    637,007.81x = 317,687,493,086.07
  5. Step 5: Solve for x
    x = 317,687,493,086.07/637,007.81
  6. Step 6: Final answer
    x = 498,718.36

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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.