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Finding the Fourth Proportional to 624,697.70, 863,535.58 and 557,381.84

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Solution

The fourth proportional to 624,697.70, 863,535.58 and 557,381.84 is: 770,483.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,697.70 : 863,535.58 = 557,381.84 : x
  2. Step 2: Convert to fraction form
    624,697.70/863,535.58 = 557,381.84/x
  3. Step 3: Cross multiply
    624,697.70x = 863,535.58 × 557,381.84
  4. Step 4: Simplify right side
    624,697.70x = 481,319,050,485.87
  5. Step 5: Solve for x
    x = 481,319,050,485.87/624,697.70
  6. Step 6: Final answer
    x = 770,483.15

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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.