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Finding the Fourth Proportional to 541,976.64, 746,723.40 and 357,888.32

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Solution

The fourth proportional to 541,976.64, 746,723.40 and 357,888.32 is: 493,090.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,976.64 : 746,723.40 = 357,888.32 : x
  2. Step 2: Convert to fraction form
    541,976.64/746,723.40 = 357,888.32/x
  3. Step 3: Cross multiply
    541,976.64x = 746,723.40 × 357,888.32
  4. Step 4: Simplify right side
    541,976.64x = 267,243,583,130.69
  5. Step 5: Solve for x
    x = 267,243,583,130.69/541,976.64
  6. Step 6: Final answer
    x = 493,090.59

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Double scale
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Similar ratio
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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.