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Finding the Fourth Proportional to 624,465.77, 861,783.75 and 382,701.73

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Solution

The fourth proportional to 624,465.77, 861,783.75 and 382,701.73 is: 528,141.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,465.77 : 861,783.75 = 382,701.73 : x
  2. Step 2: Convert to fraction form
    624,465.77/861,783.75 = 382,701.73/x
  3. Step 3: Cross multiply
    624,465.77x = 861,783.75 × 382,701.73
  4. Step 4: Simplify right side
    624,465.77x = 329,806,130,097.38
  5. Step 5: Solve for x
    x = 329,806,130,097.38/624,465.77
  6. Step 6: Final answer
    x = 528,141.25

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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.