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Finding the Fourth Proportional to 617,764.56, 852,346.32 and 424,230.48

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Solution

The fourth proportional to 617,764.56, 852,346.32 and 424,230.48 is: 585,322.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,764.56 : 852,346.32 = 424,230.48 : x
  2. Step 2: Convert to fraction form
    617,764.56/852,346.32 = 424,230.48/x
  3. Step 3: Cross multiply
    617,764.56x = 852,346.32 × 424,230.48
  4. Step 4: Simplify right side
    617,764.56x = 361,591,288,459.83
  5. Step 5: Solve for x
    x = 361,591,288,459.83/617,764.56
  6. Step 6: Final answer
    x = 585,322.16

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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.