Home / 711,841.94-982,338.05-389,551.28

Finding the Fourth Proportional to 711,841.94, 982,338.05 and 389,551.28

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Solution

The fourth proportional to 711,841.94, 982,338.05 and 389,551.28 is: 537,578.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,841.94 : 982,338.05 = 389,551.28 : x
  2. Step 2: Convert to fraction form
    711,841.94/982,338.05 = 389,551.28/x
  3. Step 3: Cross multiply
    711,841.94x = 982,338.05 × 389,551.28
  4. Step 4: Simplify right side
    711,841.94x = 382,671,040,832.39
  5. Step 5: Solve for x
    x = 382,671,040,832.39/711,841.94
  6. Step 6: Final answer
    x = 537,578.66

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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.