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Finding the Fourth Proportional to 492,612.15, 679,804.89 and 277,752.27

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Solution

The fourth proportional to 492,612.15, 679,804.89 and 277,752.27 is: 383,298.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,612.15 : 679,804.89 = 277,752.27 : x
  2. Step 2: Convert to fraction form
    492,612.15/679,804.89 = 277,752.27/x
  3. Step 3: Cross multiply
    492,612.15x = 679,804.89 × 277,752.27
  4. Step 4: Simplify right side
    492,612.15x = 188,817,351,354.60
  5. Step 5: Solve for x
    x = 188,817,351,354.60/492,612.15
  6. Step 6: Final answer
    x = 383,298.20

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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.