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Finding the Fourth Proportional to 624,305.84, 862,423.32 and 496,818.32

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Solution

The fourth proportional to 624,305.84, 862,423.32 and 496,818.32 is: 686,310.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,305.84 : 862,423.32 = 496,818.32 : x
  2. Step 2: Convert to fraction form
    624,305.84/862,423.32 = 496,818.32/x
  3. Step 3: Cross multiply
    624,305.84x = 862,423.32 × 496,818.32
  4. Step 4: Simplify right side
    624,305.84x = 428,467,704,971.22
  5. Step 5: Solve for x
    x = 428,467,704,971.22/624,305.84
  6. Step 6: Final answer
    x = 686,310.58

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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.