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Finding the Fourth Proportional to 533,020.55, 735,570.28 and 291,303.05

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Solution

The fourth proportional to 533,020.55, 735,570.28 and 291,303.05 is: 401,999.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,020.55 : 735,570.28 = 291,303.05 : x
  2. Step 2: Convert to fraction form
    533,020.55/735,570.28 = 291,303.05/x
  3. Step 3: Cross multiply
    533,020.55x = 735,570.28 × 291,303.05
  4. Step 4: Simplify right side
    533,020.55x = 214,273,860,918.99
  5. Step 5: Solve for x
    x = 214,273,860,918.99/533,020.55
  6. Step 6: Final answer
    x = 401,999.25

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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.