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Finding the Fourth Proportional to 553,670.95, 830,506.43 and 543,173.35

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Solution

The fourth proportional to 553,670.95, 830,506.43 and 543,173.35 is: 814,760.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,670.95 : 830,506.43 = 543,173.35 : x
  2. Step 2: Convert to fraction form
    553,670.95/830,506.43 = 543,173.35/x
  3. Step 3: Cross multiply
    553,670.95x = 830,506.43 × 543,173.35
  4. Step 4: Simplify right side
    553,670.95x = 451,108,959,779.64
  5. Step 5: Solve for x
    x = 451,108,959,779.64/553,670.95
  6. Step 6: Final answer
    x = 814,760.03

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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.