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Finding the Fourth Proportional to 633,779.74, 874,600.95 and 347,285.98

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Solution

The fourth proportional to 633,779.74, 874,600.95 and 347,285.98 is: 479,246.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,779.74 : 874,600.95 = 347,285.98 : x
  2. Step 2: Convert to fraction form
    633,779.74/874,600.95 = 347,285.98/x
  3. Step 3: Cross multiply
    633,779.74x = 874,600.95 × 347,285.98
  4. Step 4: Simplify right side
    633,779.74x = 303,736,648,029.68
  5. Step 5: Solve for x
    x = 303,736,648,029.68/633,779.74
  6. Step 6: Final answer
    x = 479,246.38

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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.