Home / 917,797.14-1,266,552.45-515,380.50

Finding the Fourth Proportional to 917,797.14, 1,266,552.45 and 515,380.50

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Solution

The fourth proportional to 917,797.14, 1,266,552.45 and 515,380.50 is: 711,220.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,797.14 : 1,266,552.45 = 515,380.50 : x
  2. Step 2: Convert to fraction form
    917,797.14/1,266,552.45 = 515,380.50/x
  3. Step 3: Cross multiply
    917,797.14x = 1,266,552.45 × 515,380.50
  4. Step 4: Simplify right side
    917,797.14x = 652,756,434,957.23
  5. Step 5: Solve for x
    x = 652,756,434,957.23/917,797.14
  6. Step 6: Final answer
    x = 711,220.82

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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.