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Finding the Fourth Proportional to 566,925.45, 782,357.16 and 312,276.63

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Solution

The fourth proportional to 566,925.45, 782,357.16 and 312,276.63 is: 430,941.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,925.45 : 782,357.16 = 312,276.63 : x
  2. Step 2: Convert to fraction form
    566,925.45/782,357.16 = 312,276.63/x
  3. Step 3: Cross multiply
    566,925.45x = 782,357.16 × 312,276.63
  4. Step 4: Simplify right side
    566,925.45x = 244,311,861,486.05
  5. Step 5: Solve for x
    x = 244,311,861,486.05/566,925.45
  6. Step 6: Final answer
    x = 430,941.78

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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.