Home / 527,173.25-727,498.05-285,455.07

Finding the Fourth Proportional to 527,173.25, 727,498.05 and 285,455.07

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Solution

The fourth proportional to 527,173.25, 727,498.05 and 285,455.07 is: 393,927.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,173.25 : 727,498.05 = 285,455.07 : x
  2. Step 2: Convert to fraction form
    527,173.25/727,498.05 = 285,455.07/x
  3. Step 3: Cross multiply
    527,173.25x = 727,498.05 × 285,455.07
  4. Step 4: Simplify right side
    527,173.25x = 207,668,006,787.61
  5. Step 5: Solve for x
    x = 207,668,006,787.61/527,173.25
  6. Step 6: Final answer
    x = 393,927.44

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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.