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Finding the Fourth Proportional to 624,749.29, 861,509.62 and 534,404.32

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Solution

The fourth proportional to 624,749.29, 861,509.62 and 534,404.32 is: 736,926.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,749.29 : 861,509.62 = 534,404.32 : x
  2. Step 2: Convert to fraction form
    624,749.29/861,509.62 = 534,404.32/x
  3. Step 3: Cross multiply
    624,749.29x = 861,509.62 × 534,404.32
  4. Step 4: Simplify right side
    624,749.29x = 460,394,461,163.79
  5. Step 5: Solve for x
    x = 460,394,461,163.79/624,749.29
  6. Step 6: Final answer
    x = 736,926.75

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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.