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Finding the Fourth Proportional to 527,904.97, 728,512.58 and 286,191.34

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Solution

The fourth proportional to 527,904.97, 728,512.58 and 286,191.34 is: 394,946.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,904.97 : 728,512.58 = 286,191.34 : x
  2. Step 2: Convert to fraction form
    527,904.97/728,512.58 = 286,191.34/x
  3. Step 3: Cross multiply
    527,904.97x = 728,512.58 × 286,191.34
  4. Step 4: Simplify right side
    527,904.97x = 208,493,991,477.06
  5. Step 5: Solve for x
    x = 208,493,991,477.06/527,904.97
  6. Step 6: Final answer
    x = 394,946.07

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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.