Home / 712,542.14-983,288.79-406,612.94

Finding the Fourth Proportional to 712,542.14, 983,288.79 and 406,612.94

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Solution

The fourth proportional to 712,542.14, 983,288.79 and 406,612.94 is: 561,114.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,542.14 : 983,288.79 = 406,612.94 : x
  2. Step 2: Convert to fraction form
    712,542.14/983,288.79 = 406,612.94/x
  3. Step 3: Cross multiply
    712,542.14x = 983,288.79 × 406,612.94
  4. Step 4: Simplify right side
    712,542.14x = 399,817,945,770.94
  5. Step 5: Solve for x
    x = 399,817,945,770.94/712,542.14
  6. Step 6: Final answer
    x = 561,114.81

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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.