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Finding the Fourth Proportional to 633,561.84, 874,337.58 and 347,081.90

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Solution

The fourth proportional to 633,561.84, 874,337.58 and 347,081.90 is: 478,985.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,561.84 : 874,337.58 = 347,081.90 : x
  2. Step 2: Convert to fraction form
    633,561.84/874,337.58 = 347,081.90/x
  3. Step 3: Cross multiply
    633,561.84x = 874,337.58 × 347,081.90
  4. Step 4: Simplify right side
    633,561.84x = 303,466,744,136.11
  5. Step 5: Solve for x
    x = 303,466,744,136.11/633,561.84
  6. Step 6: Final answer
    x = 478,985.20

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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.