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Finding the Fourth Proportional to 507,608.16, 700,499.26 and 281,253.66

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Solution

The fourth proportional to 507,608.16, 700,499.26 and 281,253.66 is: 388,130.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,608.16 : 700,499.26 = 281,253.66 : x
  2. Step 2: Convert to fraction form
    507,608.16/700,499.26 = 281,253.66/x
  3. Step 3: Cross multiply
    507,608.16x = 700,499.26 × 281,253.66
  4. Step 4: Simplify right side
    507,608.16x = 197,017,980,702.29
  5. Step 5: Solve for x
    x = 197,017,980,702.29/507,608.16
  6. Step 6: Final answer
    x = 388,130.05

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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.