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Finding the Fourth Proportional to 474,439.42, 654,661.74 and 283,412.26

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Solution

The fourth proportional to 474,439.42, 654,661.74 and 283,412.26 is: 391,070.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,439.42 : 654,661.74 = 283,412.26 : x
  2. Step 2: Convert to fraction form
    474,439.42/654,661.74 = 283,412.26/x
  3. Step 3: Cross multiply
    474,439.42x = 654,661.74 × 283,412.26
  4. Step 4: Simplify right side
    474,439.42x = 185,539,163,268.93
  5. Step 5: Solve for x
    x = 185,539,163,268.93/474,439.42
  6. Step 6: Final answer
    x = 391,070.29

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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.