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Finding the Fourth Proportional to 1,859,985, 2,790,003.42 and 530,289

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Solution

The fourth proportional to 1,859,985, 2,790,003.42 and 530,289 is: 795,440.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859,985 : 2,790,003.42 = 530,289 : x
  2. Step 2: Convert to fraction form
    1,859,985/2,790,003.42 = 530,289/x
  3. Step 3: Cross multiply
    1,859,985x = 2,790,003.42 × 530,289
  4. Step 4: Simplify right side
    1,859,985x = 1,479,508,123,588.38
  5. Step 5: Solve for x
    x = 1,479,508,123,588.38/1,859,985
  6. Step 6: Final answer
    x = 795,440.89

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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.