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Finding the Fourth Proportional to 415,427.68, 573,005.52 and 254,362.28

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Solution

The fourth proportional to 415,427.68, 573,005.52 and 254,362.28 is: 350,845.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,427.68 : 573,005.52 = 254,362.28 : x
  2. Step 2: Convert to fraction form
    415,427.68/573,005.52 = 254,362.28/x
  3. Step 3: Cross multiply
    415,427.68x = 573,005.52 × 254,362.28
  4. Step 4: Simplify right side
    415,427.68x = 145,750,990,519.79
  5. Step 5: Solve for x
    x = 145,750,990,519.79/415,427.68
  6. Step 6: Final answer
    x = 350,845.64

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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.