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Finding the Fourth Proportional to 472,277.80, 708,416.70 and 259,701.40

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Solution

The fourth proportional to 472,277.80, 708,416.70 and 259,701.40 is: 389,552.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,277.80 : 708,416.70 = 259,701.40 : x
  2. Step 2: Convert to fraction form
    472,277.80/708,416.70 = 259,701.40/x
  3. Step 3: Cross multiply
    472,277.80x = 708,416.70 × 259,701.40
  4. Step 4: Simplify right side
    472,277.80x = 183,976,808,773.38
  5. Step 5: Solve for x
    x = 183,976,808,773.38/472,277.80
  6. Step 6: Final answer
    x = 389,552.10

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.