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Finding the Fourth Proportional to 554,309.40, 831,464.10 and 464,628.73

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Solution

The fourth proportional to 554,309.40, 831,464.10 and 464,628.73 is: 696,943.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,309.40 : 831,464.10 = 464,628.73 : x
  2. Step 2: Convert to fraction form
    554,309.40/831,464.10 = 464,628.73/x
  3. Step 3: Cross multiply
    554,309.40x = 831,464.10 × 464,628.73
  4. Step 4: Simplify right side
    554,309.40x = 386,322,108,823.59
  5. Step 5: Solve for x
    x = 386,322,108,823.59/554,309.40
  6. Step 6: Final answer
    x = 696,943.10

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.