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Finding the Fourth Proportional to 554,348.40, 831,522.60 and 317,496.30

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Solution

The fourth proportional to 554,348.40, 831,522.60 and 317,496.30 is: 476,244.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,348.40 : 831,522.60 = 317,496.30 : x
  2. Step 2: Convert to fraction form
    554,348.40/831,522.60 = 317,496.30/x
  3. Step 3: Cross multiply
    554,348.40x = 831,522.60 × 317,496.30
  4. Step 4: Simplify right side
    554,348.40x = 264,005,348,866.38
  5. Step 5: Solve for x
    x = 264,005,348,866.38/554,348.40
  6. Step 6: Final answer
    x = 476,244.45

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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.