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Finding the Fourth Proportional to 633,557.84, 874,331.69 and 347,077.85

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Solution

The fourth proportional to 633,557.84, 874,331.69 and 347,077.85 is: 478,979.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,557.84 : 874,331.69 = 347,077.85 : x
  2. Step 2: Convert to fraction form
    633,557.84/874,331.69 = 347,077.85/x
  3. Step 3: Cross multiply
    633,557.84x = 874,331.69 × 347,077.85
  4. Step 4: Simplify right side
    633,557.84x = 303,461,157,045.02
  5. Step 5: Solve for x
    x = 303,461,157,045.02/633,557.84
  6. Step 6: Final answer
    x = 478,979.41

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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.