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Finding the Fourth Proportional to 346,712.30, 520,068.45 and 294,353.90

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Solution

The fourth proportional to 346,712.30, 520,068.45 and 294,353.90 is: 441,530.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,712.30 : 520,068.45 = 294,353.90 : x
  2. Step 2: Convert to fraction form
    346,712.30/520,068.45 = 294,353.90/x
  3. Step 3: Cross multiply
    346,712.30x = 520,068.45 × 294,353.90
  4. Step 4: Simplify right side
    346,712.30x = 153,084,176,524.46
  5. Step 5: Solve for x
    x = 153,084,176,524.46/346,712.30
  6. Step 6: Final answer
    x = 441,530.85

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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.