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Finding the Fourth Proportional to 527,303.01, 727,677.88 and 285,585.55

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Solution

The fourth proportional to 527,303.01, 727,677.88 and 285,585.55 is: 394,107.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,303.01 : 727,677.88 = 285,585.55 : x
  2. Step 2: Convert to fraction form
    527,303.01/727,677.88 = 285,585.55/x
  3. Step 3: Cross multiply
    527,303.01x = 727,677.88 × 285,585.55
  4. Step 4: Simplify right side
    527,303.01x = 207,814,287,582.63
  5. Step 5: Solve for x
    x = 207,814,287,582.63/527,303.01
  6. Step 6: Final answer
    x = 394,107.91

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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.