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Finding the Fourth Proportional to 607,129.20, 910,693.80 and 565,657.20

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Solution

The fourth proportional to 607,129.20, 910,693.80 and 565,657.20 is: 848,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,129.20 : 910,693.80 = 565,657.20 : x
  2. Step 2: Convert to fraction form
    607,129.20/910,693.80 = 565,657.20/x
  3. Step 3: Cross multiply
    607,129.20x = 910,693.80 × 565,657.20
  4. Step 4: Simplify right side
    607,129.20x = 515,140,504,965.36
  5. Step 5: Solve for x
    x = 515,140,504,965.36/607,129.20
  6. Step 6: Final answer
    x = 848,485.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.