Home / 885,439.94-1,221,901.40-503,466.68

Finding the Fourth Proportional to 885,439.94, 1,221,901.40 and 503,466.68

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Solution

The fourth proportional to 885,439.94, 1,221,901.40 and 503,466.68 is: 694,780.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,439.94 : 1,221,901.40 = 503,466.68 : x
  2. Step 2: Convert to fraction form
    885,439.94/1,221,901.40 = 503,466.68/x
  3. Step 3: Cross multiply
    885,439.94x = 1,221,901.40 × 503,466.68
  4. Step 4: Simplify right side
    885,439.94x = 615,186,645,458.77
  5. Step 5: Solve for x
    x = 615,186,645,458.77/885,439.94
  6. Step 6: Final answer
    x = 694,780.78

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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.