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Finding the Fourth Proportional to 612,594.92, 918,891.66 and 191,903.56

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Solution

The fourth proportional to 612,594.92, 918,891.66 and 191,903.56 is: 287,855.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,594.92 : 918,891.66 = 191,903.56 : x
  2. Step 2: Convert to fraction form
    612,594.92/918,891.66 = 191,903.56/x
  3. Step 3: Cross multiply
    612,594.92x = 918,891.66 × 191,903.56
  4. Step 4: Simplify right side
    612,594.92x = 176,338,580,808.31
  5. Step 5: Solve for x
    x = 176,338,580,808.31/612,594.92
  6. Step 6: Final answer
    x = 287,855.11

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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.