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Finding the Fourth Proportional to 554,275.12, 764,389.56 and 363,219.12

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Solution

The fourth proportional to 554,275.12, 764,389.56 and 363,219.12 is: 500,908.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,275.12 : 764,389.56 = 363,219.12 : x
  2. Step 2: Convert to fraction form
    554,275.12/764,389.56 = 363,219.12/x
  3. Step 3: Cross multiply
    554,275.12x = 764,389.56 × 363,219.12
  4. Step 4: Simplify right side
    554,275.12x = 277,640,903,320.39
  5. Step 5: Solve for x
    x = 277,640,903,320.39/554,275.12
  6. Step 6: Final answer
    x = 500,908.11

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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.