Home / 975,247.43-1,345,252.96-644,105.39

Finding the Fourth Proportional to 975,247.43, 1,345,252.96 and 644,105.39

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Solution

The fourth proportional to 975,247.43, 1,345,252.96 and 644,105.39 is: 888,476.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    975,247.43 : 1,345,252.96 = 644,105.39 : x
  2. Step 2: Convert to fraction form
    975,247.43/1,345,252.96 = 644,105.39/x
  3. Step 3: Cross multiply
    975,247.43x = 1,345,252.96 × 644,105.39
  4. Step 4: Simplify right side
    975,247.43x = 866,484,676,528.32
  5. Step 5: Solve for x
    x = 866,484,676,528.32/975,247.43
  6. Step 6: Final answer
    x = 888,476.76

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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.