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Finding the Fourth Proportional to 405,281.60, 607,047.60 and 335,297.60

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Solution

The fourth proportional to 405,281.60, 607,047.60 and 335,297.60 is: 502,222.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,281.60 : 607,047.60 = 335,297.60 : x
  2. Step 2: Convert to fraction form
    405,281.60/607,047.60 = 335,297.60/x
  3. Step 3: Cross multiply
    405,281.60x = 607,047.60 × 335,297.60
  4. Step 4: Simplify right side
    405,281.60x = 203,541,603,365.76
  5. Step 5: Solve for x
    x = 203,541,603,365.76/405,281.60
  6. Step 6: Final answer
    x = 502,222.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.