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Finding the Fourth Proportional to 527,928.88, 728,546.98 and 286,210.84

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Solution

The fourth proportional to 527,928.88, 728,546.98 and 286,210.84 is: 394,973.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,928.88 : 728,546.98 = 286,210.84 : x
  2. Step 2: Convert to fraction form
    527,928.88/728,546.98 = 286,210.84/x
  3. Step 3: Cross multiply
    527,928.88x = 728,546.98 × 286,210.84
  4. Step 4: Simplify right side
    527,928.88x = 208,518,043,125.26
  5. Step 5: Solve for x
    x = 208,518,043,125.26/527,928.88
  6. Step 6: Final answer
    x = 394,973.74

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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.