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Finding the Fourth Proportional to 554,813.16, 831,483.98 and 284,930.40

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Solution

The fourth proportional to 554,813.16, 831,483.98 and 284,930.40 is: 427,017.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,813.16 : 831,483.98 = 284,930.40 : x
  2. Step 2: Convert to fraction form
    554,813.16/831,483.98 = 284,930.40/x
  3. Step 3: Cross multiply
    554,813.16x = 831,483.98 × 284,930.40
  4. Step 4: Simplify right side
    554,813.16x = 236,915,063,014.99
  5. Step 5: Solve for x
    x = 236,915,063,014.99/554,813.16
  6. Step 6: Final answer
    x = 427,017.74

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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.