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Finding the Fourth Proportional to 624,476.36, 861,798.24 and 382,712.24

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Solution

The fourth proportional to 624,476.36, 861,798.24 and 382,712.24 is: 528,155.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,476.36 : 861,798.24 = 382,712.24 : x
  2. Step 2: Convert to fraction form
    624,476.36/861,798.24 = 382,712.24/x
  3. Step 3: Cross multiply
    624,476.36x = 861,798.24 × 382,712.24
  4. Step 4: Simplify right side
    624,476.36x = 329,820,734,858.46
  5. Step 5: Solve for x
    x = 329,820,734,858.46/624,476.36
  6. Step 6: Final answer
    x = 528,155.68

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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.