Home / 1,282,609.30-1,921,840.35-808,446.10

Finding the Fourth Proportional to 1,282,609.30, 1,921,840.35 and 808,446.10

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Solution

The fourth proportional to 1,282,609.30, 1,921,840.35 and 808,446.10 is: 1,211,362.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,609.30 : 1,921,840.35 = 808,446.10 : x
  2. Step 2: Convert to fraction form
    1,282,609.30/1,921,840.35 = 808,446.10/x
  3. Step 3: Cross multiply
    1,282,609.30x = 1,921,840.35 × 808,446.10
  4. Step 4: Simplify right side
    1,282,609.30x = 1,553,704,335,780.14
  5. Step 5: Solve for x
    x = 1,553,704,335,780.14/1,282,609.30
  6. Step 6: Final answer
    x = 1,211,362.13

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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.