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Finding the Fourth Proportional to 507,608.66, 700,499.96 and 281,254.16

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Solution

The fourth proportional to 507,608.66, 700,499.96 and 281,254.16 is: 388,130.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,608.66 : 700,499.96 = 281,254.16 : x
  2. Step 2: Convert to fraction form
    507,608.66/700,499.96 = 281,254.16/x
  3. Step 3: Cross multiply
    507,608.66x = 700,499.96 × 281,254.16
  4. Step 4: Simplify right side
    507,608.66x = 197,018,522,921.06
  5. Step 5: Solve for x
    x = 197,018,522,921.06/507,608.66
  6. Step 6: Final answer
    x = 388,130.74

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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.