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Finding the Fourth Proportional to 515,864.94, 773,681.58 and 216,683.34

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Solution

The fourth proportional to 515,864.94, 773,681.58 and 216,683.34 is: 324,976.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,864.94 : 773,681.58 = 216,683.34 : x
  2. Step 2: Convert to fraction form
    515,864.94/773,681.58 = 216,683.34/x
  3. Step 3: Cross multiply
    515,864.94x = 773,681.58 × 216,683.34
  4. Step 4: Simplify right side
    515,864.94x = 167,643,908,850.88
  5. Step 5: Solve for x
    x = 167,643,908,850.88/515,864.94
  6. Step 6: Final answer
    x = 324,976.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.