Home / 811,453.77-1,119,785.99-448,897.77

Finding the Fourth Proportional to 811,453.77, 1,119,785.99 and 448,897.77

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Solution

The fourth proportional to 811,453.77, 1,119,785.99 and 448,897.77 is: 619,467.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,453.77 : 1,119,785.99 = 448,897.77 : x
  2. Step 2: Convert to fraction form
    811,453.77/1,119,785.99 = 448,897.77/x
  3. Step 3: Cross multiply
    811,453.77x = 1,119,785.99 × 448,897.77
  4. Step 4: Simplify right side
    811,453.77x = 502,669,431,543.75
  5. Step 5: Solve for x
    x = 502,669,431,543.75/811,453.77
  6. Step 6: Final answer
    x = 619,467.74

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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.