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Finding the Fourth Proportional to 717,066.28, 989,533.38 and 394,773.16

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Solution

The fourth proportional to 717,066.28, 989,533.38 and 394,773.16 is: 544,777.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,066.28 : 989,533.38 = 394,773.16 : x
  2. Step 2: Convert to fraction form
    717,066.28/989,533.38 = 394,773.16/x
  3. Step 3: Cross multiply
    717,066.28x = 989,533.38 × 394,773.16
  4. Step 4: Simplify right side
    717,066.28x = 390,641,219,348.08
  5. Step 5: Solve for x
    x = 390,641,219,348.08/717,066.28
  6. Step 6: Final answer
    x = 544,777.00

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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.