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Finding the Fourth Proportional to 405,697.01, 559,673.35 and 262,503.18

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Solution

The fourth proportional to 405,697.01, 559,673.35 and 262,503.18 is: 362,132.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,697.01 : 559,673.35 = 262,503.18 : x
  2. Step 2: Convert to fraction form
    405,697.01/559,673.35 = 262,503.18/x
  3. Step 3: Cross multiply
    405,697.01x = 559,673.35 × 262,503.18
  4. Step 4: Simplify right side
    405,697.01x = 146,916,033,480.00
  5. Step 5: Solve for x
    x = 146,916,033,480.00/405,697.01
  6. Step 6: Final answer
    x = 362,132.41

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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.