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Finding the Fourth Proportional to 545,116.30, 817,674.45 and 403,398.70

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Solution

The fourth proportional to 545,116.30, 817,674.45 and 403,398.70 is: 605,098.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,116.30 : 817,674.45 = 403,398.70 : x
  2. Step 2: Convert to fraction form
    545,116.30/817,674.45 = 403,398.70/x
  3. Step 3: Cross multiply
    545,116.30x = 817,674.45 × 403,398.70
  4. Step 4: Simplify right side
    545,116.30x = 329,848,810,153.22
  5. Step 5: Solve for x
    x = 329,848,810,153.22/545,116.30
  6. Step 6: Final answer
    x = 605,098.05

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Similar ratio
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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.