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Finding the Fourth Proportional to 398,792.84, 596,784.08 and 249,103.62

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Solution

The fourth proportional to 398,792.84, 596,784.08 and 249,103.62 is: 372,777.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,792.84 : 596,784.08 = 249,103.62 : x
  2. Step 2: Convert to fraction form
    398,792.84/596,784.08 = 249,103.62/x
  3. Step 3: Cross multiply
    398,792.84x = 596,784.08 × 249,103.62
  4. Step 4: Simplify right side
    398,792.84x = 148,661,074,686.37
  5. Step 5: Solve for x
    x = 148,661,074,686.37/398,792.84
  6. Step 6: Final answer
    x = 372,777.69

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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.