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Finding the Fourth Proportional to 553,683.80, 829,143.30 and 365,677.40

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Solution

The fourth proportional to 553,683.80, 829,143.30 and 365,677.40 is: 547,603.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,683.80 : 829,143.30 = 365,677.40 : x
  2. Step 2: Convert to fraction form
    553,683.80/829,143.30 = 365,677.40/x
  3. Step 3: Cross multiply
    553,683.80x = 829,143.30 × 365,677.40
  4. Step 4: Simplify right side
    553,683.80x = 303,198,966,171.42
  5. Step 5: Solve for x
    x = 303,198,966,171.42/553,683.80
  6. Step 6: Final answer
    x = 547,603.10

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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.