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Finding the Fourth Proportional to 507,475.13, 700,315.67 and 303,534.64

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Solution

The fourth proportional to 507,475.13, 700,315.67 and 303,534.64 is: 418,877.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,475.13 : 700,315.67 = 303,534.64 : x
  2. Step 2: Convert to fraction form
    507,475.13/700,315.67 = 303,534.64/x
  3. Step 3: Cross multiply
    507,475.13x = 700,315.67 × 303,534.64
  4. Step 4: Simplify right side
    507,475.13x = 212,570,066,414.04
  5. Step 5: Solve for x
    x = 212,570,066,414.04/507,475.13
  6. Step 6: Final answer
    x = 418,877.80

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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.