Home / 699,675.87-965,541.54-389,575.47

Finding the Fourth Proportional to 699,675.87, 965,541.54 and 389,575.47

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Solution

The fourth proportional to 699,675.87, 965,541.54 and 389,575.47 is: 537,607.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,675.87 : 965,541.54 = 389,575.47 : x
  2. Step 2: Convert to fraction form
    699,675.87/965,541.54 = 389,575.47/x
  3. Step 3: Cross multiply
    699,675.87x = 965,541.54 × 389,575.47
  4. Step 4: Simplify right side
    699,675.87x = 376,151,299,250.02
  5. Step 5: Solve for x
    x = 376,151,299,250.02/699,675.87
  6. Step 6: Final answer
    x = 537,607.93

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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.