Home / 633,904.02-874,747.89-347,403.78

Finding the Fourth Proportional to 633,904.02, 874,747.89 and 347,403.78

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Solution

The fourth proportional to 633,904.02, 874,747.89 and 347,403.78 is: 479,395.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,904.02 : 874,747.89 = 347,403.78 : x
  2. Step 2: Convert to fraction form
    633,904.02/874,747.89 = 347,403.78/x
  3. Step 3: Cross multiply
    633,904.02x = 874,747.89 × 347,403.78
  4. Step 4: Simplify right side
    633,904.02x = 303,890,723,533.02
  5. Step 5: Solve for x
    x = 303,890,723,533.02/633,904.02
  6. Step 6: Final answer
    x = 479,395.48

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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.