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Finding the Fourth Proportional to 417,019.79, 625,045.82 and 191,907.63

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Solution

The fourth proportional to 417,019.79, 625,045.82 and 191,907.63 is: 287,638.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,019.79 : 625,045.82 = 191,907.63 : x
  2. Step 2: Convert to fraction form
    417,019.79/625,045.82 = 191,907.63/x
  3. Step 3: Cross multiply
    417,019.79x = 625,045.82 × 191,907.63
  4. Step 4: Simplify right side
    417,019.79x = 119,951,060,998.07
  5. Step 5: Solve for x
    x = 119,951,060,998.07/417,019.79
  6. Step 6: Final answer
    x = 287,638.77

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1.5x scale

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.