Home / 434,553.20-651,611.10-257,114.60

Finding the Fourth Proportional to 434,553.20, 651,611.10 and 257,114.60

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Solution

The fourth proportional to 434,553.20, 651,611.10 and 257,114.60 is: 385,542.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,553.20 : 651,611.10 = 257,114.60 : x
  2. Step 2: Convert to fraction form
    434,553.20/651,611.10 = 257,114.60/x
  3. Step 3: Cross multiply
    434,553.20x = 651,611.10 × 257,114.60
  4. Step 4: Simplify right side
    434,553.20x = 167,538,727,332.06
  5. Step 5: Solve for x
    x = 167,538,727,332.06/434,553.20
  6. Step 6: Final answer
    x = 385,542.50

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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.