Home / 1,228,291.11-1,695,019-669,490.30

Finding the Fourth Proportional to 1,228,291.11, 1,695,019 and 669,490.30

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Solution

The fourth proportional to 1,228,291.11, 1,695,019 and 669,490.30 is: 923,884.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,291.11 : 1,695,019 = 669,490.30 : x
  2. Step 2: Convert to fraction form
    1,228,291.11/1,695,019 = 669,490.30/x
  3. Step 3: Cross multiply
    1,228,291.11x = 1,695,019 × 669,490.30
  4. Step 4: Simplify right side
    1,228,291.11x = 1,134,798,778,815.70
  5. Step 5: Solve for x
    x = 1,134,798,778,815.70/1,228,291.11
  6. Step 6: Final answer
    x = 923,884.22

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Double scale
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1.5x scale

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.