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Finding the Fourth Proportional to 499,256.83, 688,973.97 and 269,813.98

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Solution

The fourth proportional to 499,256.83, 688,973.97 and 269,813.98 is: 372,343.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,256.83 : 688,973.97 = 269,813.98 : x
  2. Step 2: Convert to fraction form
    499,256.83/688,973.97 = 269,813.98/x
  3. Step 3: Cross multiply
    499,256.83x = 688,973.97 × 269,813.98
  4. Step 4: Simplify right side
    499,256.83x = 185,894,808,962.10
  5. Step 5: Solve for x
    x = 185,894,808,962.10/499,256.83
  6. Step 6: Final answer
    x = 372,343.05

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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.