Home / 811,349.66-1,217,622.45-384,886.82

Finding the Fourth Proportional to 811,349.66, 1,217,622.45 and 384,886.82

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Solution

The fourth proportional to 811,349.66, 1,217,622.45 and 384,886.82 is: 577,613.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,349.66 : 1,217,622.45 = 384,886.82 : x
  2. Step 2: Convert to fraction form
    811,349.66/1,217,622.45 = 384,886.82/x
  3. Step 3: Cross multiply
    811,349.66x = 1,217,622.45 × 384,886.82
  4. Step 4: Simplify right side
    811,349.66x = 468,646,832,741.11
  5. Step 5: Solve for x
    x = 468,646,832,741.11/811,349.66
  6. Step 6: Final answer
    x = 577,613.89

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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.