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Finding the Fourth Proportional to 368,532.65, 508,573.37 and 207,390.40

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Solution

The fourth proportional to 368,532.65, 508,573.37 and 207,390.40 is: 286,197.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,532.65 : 508,573.37 = 207,390.40 : x
  2. Step 2: Convert to fraction form
    368,532.65/508,573.37 = 207,390.40/x
  3. Step 3: Cross multiply
    368,532.65x = 508,573.37 × 207,390.40
  4. Step 4: Simplify right side
    368,532.65x = 105,473,233,880.69
  5. Step 5: Solve for x
    x = 105,473,233,880.69/368,532.65
  6. Step 6: Final answer
    x = 286,197.80

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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.