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Finding the Fourth Proportional to 492,095.85, 679,089.18 and 277,304.91

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Solution

The fourth proportional to 492,095.85, 679,089.18 and 277,304.91 is: 382,679.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,095.85 : 679,089.18 = 277,304.91 : x
  2. Step 2: Convert to fraction form
    492,095.85/679,089.18 = 277,304.91/x
  3. Step 3: Cross multiply
    492,095.85x = 679,089.18 × 277,304.91
  4. Step 4: Simplify right side
    492,095.85x = 188,314,763,941.87
  5. Step 5: Solve for x
    x = 188,314,763,941.87/492,095.85
  6. Step 6: Final answer
    x = 382,679.03

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1.5x scale

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.