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Finding the Fourth Proportional to 507,464.24, 700,343.34 and 281,130.80

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Solution

The fourth proportional to 507,464.24, 700,343.34 and 281,130.80 is: 387,984.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,464.24 : 700,343.34 = 281,130.80 : x
  2. Step 2: Convert to fraction form
    507,464.24/700,343.34 = 281,130.80/x
  3. Step 3: Cross multiply
    507,464.24x = 700,343.34 × 281,130.80
  4. Step 4: Simplify right side
    507,464.24x = 196,888,083,448.87
  5. Step 5: Solve for x
    x = 196,888,083,448.87/507,464.24
  6. Step 6: Final answer
    x = 387,984.15

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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.