Home / 718,857.18-991,844.60-473,814.77

Finding the Fourth Proportional to 718,857.18, 991,844.60 and 473,814.77

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Solution

The fourth proportional to 718,857.18, 991,844.60 and 473,814.77 is: 653,746.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,857.18 : 991,844.60 = 473,814.77 : x
  2. Step 2: Convert to fraction form
    718,857.18/991,844.60 = 473,814.77/x
  3. Step 3: Cross multiply
    718,857.18x = 991,844.60 × 473,814.77
  4. Step 4: Simplify right side
    718,857.18x = 469,950,613,696.45
  5. Step 5: Solve for x
    x = 469,950,613,696.45/718,857.18
  6. Step 6: Final answer
    x = 653,746.85

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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.