Home / 811,931.18-1,120,426.44-444,400.16

Finding the Fourth Proportional to 811,931.18, 1,120,426.44 and 444,400.16

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Solution

The fourth proportional to 811,931.18, 1,120,426.44 and 444,400.16 is: 613,251.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,931.18 : 1,120,426.44 = 444,400.16 : x
  2. Step 2: Convert to fraction form
    811,931.18/1,120,426.44 = 444,400.16/x
  3. Step 3: Cross multiply
    811,931.18x = 1,120,426.44 × 444,400.16
  4. Step 4: Simplify right side
    811,931.18x = 497,917,689,204.23
  5. Step 5: Solve for x
    x = 497,917,689,204.23/811,931.18
  6. Step 6: Final answer
    x = 613,251.10

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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.