Home / 386,783.50-533,770.43-217,030.18

Finding the Fourth Proportional to 386,783.50, 533,770.43 and 217,030.18

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Solution

The fourth proportional to 386,783.50, 533,770.43 and 217,030.18 is: 299,506.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,783.50 : 533,770.43 = 217,030.18 : x
  2. Step 2: Convert to fraction form
    386,783.50/533,770.43 = 217,030.18/x
  3. Step 3: Cross multiply
    386,783.50x = 533,770.43 × 217,030.18
  4. Step 4: Simplify right side
    386,783.50x = 115,844,292,501.58
  5. Step 5: Solve for x
    x = 115,844,292,501.58/386,783.50
  6. Step 6: Final answer
    x = 299,506.81

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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.