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Finding the Fourth Proportional to 581,378.58, 802,295.46 and 339,697.98

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Solution

The fourth proportional to 581,378.58, 802,295.46 and 339,697.98 is: 468,779.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,378.58 : 802,295.46 = 339,697.98 : x
  2. Step 2: Convert to fraction form
    581,378.58/802,295.46 = 339,697.98/x
  3. Step 3: Cross multiply
    581,378.58x = 802,295.46 × 339,697.98
  4. Step 4: Simplify right side
    581,378.58x = 272,538,147,125.17
  5. Step 5: Solve for x
    x = 272,538,147,125.17/581,378.58
  6. Step 6: Final answer
    x = 468,779.13

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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.