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Finding the Fourth Proportional to 507,755.24, 700,702.62 and 281,400.74

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Solution

The fourth proportional to 507,755.24, 700,702.62 and 281,400.74 is: 388,333.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,755.24 : 700,702.62 = 281,400.74 : x
  2. Step 2: Convert to fraction form
    507,755.24/700,702.62 = 281,400.74/x
  3. Step 3: Cross multiply
    507,755.24x = 700,702.62 × 281,400.74
  4. Step 4: Simplify right side
    507,755.24x = 197,178,235,787.94
  5. Step 5: Solve for x
    x = 197,178,235,787.94/507,755.24
  6. Step 6: Final answer
    x = 388,333.24

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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.