Home / 526,905.94-727,132.39-285,188.45

Finding the Fourth Proportional to 526,905.94, 727,132.39 and 285,188.45

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Solution

The fourth proportional to 526,905.94, 727,132.39 and 285,188.45 is: 393,561.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,905.94 : 727,132.39 = 285,188.45 : x
  2. Step 2: Convert to fraction form
    526,905.94/727,132.39 = 285,188.45/x
  3. Step 3: Cross multiply
    526,905.94x = 727,132.39 × 285,188.45
  4. Step 4: Simplify right side
    526,905.94x = 207,369,756,504.45
  5. Step 5: Solve for x
    x = 207,369,756,504.45/526,905.94
  6. Step 6: Final answer
    x = 393,561.25

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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.