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Finding the Fourth Proportional to 527,437.64, 727,820.70 and 298,014.86

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Solution

The fourth proportional to 527,437.64, 727,820.70 and 298,014.86 is: 411,236.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,437.64 : 727,820.70 = 298,014.86 : x
  2. Step 2: Convert to fraction form
    527,437.64/727,820.70 = 298,014.86/x
  3. Step 3: Cross multiply
    527,437.64x = 727,820.70 × 298,014.86
  4. Step 4: Simplify right side
    527,437.64x = 216,901,384,015.60
  5. Step 5: Solve for x
    x = 216,901,384,015.60/527,437.64
  6. Step 6: Final answer
    x = 411,236.07

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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.