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Finding the Fourth Proportional to 633,545.50, 874,314.54 and 347,065.50

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Solution

The fourth proportional to 633,545.50, 874,314.54 and 347,065.50 is: 478,962.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,545.50 : 874,314.54 = 347,065.50 : x
  2. Step 2: Convert to fraction form
    633,545.50/874,314.54 = 347,065.50/x
  3. Step 3: Cross multiply
    633,545.50x = 874,314.54 × 347,065.50
  4. Step 4: Simplify right side
    633,545.50x = 303,444,412,982.37
  5. Step 5: Solve for x
    x = 303,444,412,982.37/633,545.50
  6. Step 6: Final answer
    x = 478,962.30

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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.