Home / 527,300.45-727,671-285,577.50

Finding the Fourth Proportional to 527,300.45, 727,671 and 285,577.50

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Solution

The fourth proportional to 527,300.45, 727,671 and 285,577.50 is: 394,094.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,300.45 : 727,671 = 285,577.50 : x
  2. Step 2: Convert to fraction form
    527,300.45/727,671 = 285,577.50/x
  3. Step 3: Cross multiply
    527,300.45x = 727,671 × 285,577.50
  4. Step 4: Simplify right side
    527,300.45x = 207,806,465,002.50
  5. Step 5: Solve for x
    x = 207,806,465,002.50/527,300.45
  6. Step 6: Final answer
    x = 394,094.99

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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.