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Finding the Fourth Proportional to 573,018.14, 858,712.26 and 422,071.40

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Solution

The fourth proportional to 573,018.14, 858,712.26 and 422,071.40 is: 632,506.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,018.14 : 858,712.26 = 422,071.40 : x
  2. Step 2: Convert to fraction form
    573,018.14/858,712.26 = 422,071.40/x
  3. Step 3: Cross multiply
    573,018.14x = 858,712.26 × 422,071.40
  4. Step 4: Simplify right side
    573,018.14x = 362,437,885,775.36
  5. Step 5: Solve for x
    x = 362,437,885,775.36/573,018.14
  6. Step 6: Final answer
    x = 632,506.83

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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.