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Finding the Fourth Proportional to 576,401.40, 864,083.70 and 376,817.40

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Solution

The fourth proportional to 576,401.40, 864,083.70 and 376,817.40 is: 564,887.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,401.40 : 864,083.70 = 376,817.40 : x
  2. Step 2: Convert to fraction form
    576,401.40/864,083.70 = 376,817.40/x
  3. Step 3: Cross multiply
    576,401.40x = 864,083.70 × 376,817.40
  4. Step 4: Simplify right side
    576,401.40x = 325,601,773,216.38
  5. Step 5: Solve for x
    x = 325,601,773,216.38/576,401.40
  6. Step 6: Final answer
    x = 564,887.20

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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.