Home / 1,209,333.70-1,668,877.18-665,504.76

Finding the Fourth Proportional to 1,209,333.70, 1,668,877.18 and 665,504.76

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Solution

The fourth proportional to 1,209,333.70, 1,668,877.18 and 665,504.76 is: 918,394.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,333.70 : 1,668,877.18 = 665,504.76 : x
  2. Step 2: Convert to fraction form
    1,209,333.70/1,668,877.18 = 665,504.76/x
  3. Step 3: Cross multiply
    1,209,333.70x = 1,668,877.18 × 665,504.76
  4. Step 4: Simplify right side
    1,209,333.70x = 1,110,645,707,145.38
  5. Step 5: Solve for x
    x = 1,110,645,707,145.38/1,209,333.70
  6. Step 6: Final answer
    x = 918,394.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.