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Finding the Fourth Proportional to 495,411.66, 683,671.59 and 269,057.16

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Solution

The fourth proportional to 495,411.66, 683,671.59 and 269,057.16 is: 371,300.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,411.66 : 683,671.59 = 269,057.16 : x
  2. Step 2: Convert to fraction form
    495,411.66/683,671.59 = 269,057.16/x
  3. Step 3: Cross multiply
    495,411.66x = 683,671.59 × 269,057.16
  4. Step 4: Simplify right side
    495,411.66x = 183,946,736,378.08
  5. Step 5: Solve for x
    x = 183,946,736,378.08/495,411.66
  6. Step 6: Final answer
    x = 371,300.78

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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.