Home / 527,501.80-727,951.46-285,790.40

Finding the Fourth Proportional to 527,501.80, 727,951.46 and 285,790.40

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Solution

The fourth proportional to 527,501.80, 727,951.46 and 285,790.40 is: 394,390.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,501.80 : 727,951.46 = 285,790.40 : x
  2. Step 2: Convert to fraction form
    527,501.80/727,951.46 = 285,790.40/x
  3. Step 3: Cross multiply
    527,501.80x = 727,951.46 × 285,790.40
  4. Step 4: Simplify right side
    527,501.80x = 208,041,538,933.98
  5. Step 5: Solve for x
    x = 208,041,538,933.98/527,501.80
  6. Step 6: Final answer
    x = 394,390.20

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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.