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Finding the Fourth Proportional to 554,298.80, 831,448.20 and 314,166.20

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Solution

The fourth proportional to 554,298.80, 831,448.20 and 314,166.20 is: 471,249.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,298.80 : 831,448.20 = 314,166.20 : x
  2. Step 2: Convert to fraction form
    554,298.80/831,448.20 = 314,166.20/x
  3. Step 3: Cross multiply
    554,298.80x = 831,448.20 × 314,166.20
  4. Step 4: Simplify right side
    554,298.80x = 261,212,921,490.84
  5. Step 5: Solve for x
    x = 261,212,921,490.84/554,298.80
  6. Step 6: Final answer
    x = 471,249.30

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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.