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Finding the Fourth Proportional to 350,557.80, 525,836.70 and 256,554.60

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Solution

The fourth proportional to 350,557.80, 525,836.70 and 256,554.60 is: 384,831.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,557.80 : 525,836.70 = 256,554.60 : x
  2. Step 2: Convert to fraction form
    350,557.80/525,836.70 = 256,554.60/x
  3. Step 3: Cross multiply
    350,557.80x = 525,836.70 × 256,554.60
  4. Step 4: Simplify right side
    350,557.80x = 134,905,824,233.82
  5. Step 5: Solve for x
    x = 134,905,824,233.82/350,557.80
  6. Step 6: Final answer
    x = 384,831.90

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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.