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Finding the Fourth Proportional to 633,361.70, 874,006.67 and 346,875.64

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Solution

The fourth proportional to 633,361.70, 874,006.67 and 346,875.64 is: 478,670.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,361.70 : 874,006.67 = 346,875.64 : x
  2. Step 2: Convert to fraction form
    633,361.70/874,006.67 = 346,875.64/x
  3. Step 3: Cross multiply
    633,361.70x = 874,006.67 × 346,875.64
  4. Step 4: Simplify right side
    633,361.70x = 303,171,621,702.69
  5. Step 5: Solve for x
    x = 303,171,621,702.69/633,361.70
  6. Step 6: Final answer
    x = 478,670.59

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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.