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Finding the Fourth Proportional to 346,590.90, 519,886.35 and 299,351.70

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Solution

The fourth proportional to 346,590.90, 519,886.35 and 299,351.70 is: 449,027.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,590.90 : 519,886.35 = 299,351.70 : x
  2. Step 2: Convert to fraction form
    346,590.90/519,886.35 = 299,351.70/x
  3. Step 3: Cross multiply
    346,590.90x = 519,886.35 × 299,351.70
  4. Step 4: Simplify right side
    346,590.90x = 155,628,862,679.30
  5. Step 5: Solve for x
    x = 155,628,862,679.30/346,590.90
  6. Step 6: Final answer
    x = 449,027.55

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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.