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Finding the Fourth Proportional to 713,777.46, 985,325.85 and 499,756.74

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Solution

The fourth proportional to 713,777.46, 985,325.85 and 499,756.74 is: 689,883.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,777.46 : 985,325.85 = 499,756.74 : x
  2. Step 2: Convert to fraction form
    713,777.46/985,325.85 = 499,756.74/x
  3. Step 3: Cross multiply
    713,777.46x = 985,325.85 × 499,756.74
  4. Step 4: Simplify right side
    713,777.46x = 492,423,234,633.73
  5. Step 5: Solve for x
    x = 492,423,234,633.73/713,777.46
  6. Step 6: Final answer
    x = 689,883.42

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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.