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Finding the Fourth Proportional to 640,841.57, 883,557.57 and 410,993.34

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Solution

The fourth proportional to 640,841.57, 883,557.57 and 410,993.34 is: 566,655.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,841.57 : 883,557.57 = 410,993.34 : x
  2. Step 2: Convert to fraction form
    640,841.57/883,557.57 = 410,993.34/x
  3. Step 3: Cross multiply
    640,841.57x = 883,557.57 × 410,993.34
  4. Step 4: Simplify right side
    640,841.57x = 363,136,277,662.64
  5. Step 5: Solve for x
    x = 363,136,277,662.64/640,841.57
  6. Step 6: Final answer
    x = 566,655.30

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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.