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Finding the Fourth Proportional to 633,511.18, 874,245.59 and 347,041.45

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Solution

The fourth proportional to 633,511.18, 874,245.59 and 347,041.45 is: 478,917.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,511.18 : 874,245.59 = 347,041.45 : x
  2. Step 2: Convert to fraction form
    633,511.18/874,245.59 = 347,041.45/x
  3. Step 3: Cross multiply
    633,511.18x = 874,245.59 × 347,041.45
  4. Step 4: Simplify right side
    633,511.18x = 303,399,457,209.71
  5. Step 5: Solve for x
    x = 303,399,457,209.71/633,511.18
  6. Step 6: Final answer
    x = 478,917.29

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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.