Home / 527,518.90-727,975.11-285,807.61

Finding the Fourth Proportional to 527,518.90, 727,975.11 and 285,807.61

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Solution

The fourth proportional to 527,518.90, 727,975.11 and 285,807.61 is: 394,413.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,518.90 : 727,975.11 = 285,807.61 : x
  2. Step 2: Convert to fraction form
    527,518.90/727,975.11 = 285,807.61/x
  3. Step 3: Cross multiply
    527,518.90x = 727,975.11 × 285,807.61
  4. Step 4: Simplify right side
    527,518.90x = 208,060,826,328.59
  5. Step 5: Solve for x
    x = 208,060,826,328.59/527,518.90
  6. Step 6: Final answer
    x = 394,413.98

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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.