Home / 864,588.32-1,296,854.58-391,273.64

Finding the Fourth Proportional to 864,588.32, 1,296,854.58 and 391,273.64

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Solution

The fourth proportional to 864,588.32, 1,296,854.58 and 391,273.64 is: 586,897.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,588.32 : 1,296,854.58 = 391,273.64 : x
  2. Step 2: Convert to fraction form
    864,588.32/1,296,854.58 = 391,273.64/x
  3. Step 3: Cross multiply
    864,588.32x = 1,296,854.58 × 391,273.64
  4. Step 4: Simplify right side
    864,588.32x = 507,425,012,067.27
  5. Step 5: Solve for x
    x = 507,425,012,067.27/864,588.32
  6. Step 6: Final answer
    x = 586,897.83

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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.