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Finding the Fourth Proportional to 584,658, 876,987 and 141,426

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Solution

The fourth proportional to 584,658, 876,987 and 141,426 is: 212,139

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,658 : 876,987 = 141,426 : x
  2. Step 2: Convert to fraction form
    584,658/876,987 = 141,426/x
  3. Step 3: Cross multiply
    584,658x = 876,987 × 141,426
  4. Step 4: Simplify right side
    584,658x = 124,028,763,462
  5. Step 5: Solve for x
    x = 124,028,763,462/584,658
  6. Step 6: Final answer
    x = 212,139

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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.