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Finding the Fourth Proportional to 525,296.84, 788,070 and 170,311.10

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Solution

The fourth proportional to 525,296.84, 788,070 and 170,311.10 is: 255,507.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,296.84 : 788,070 = 170,311.10 : x
  2. Step 2: Convert to fraction form
    525,296.84/788,070 = 170,311.10/x
  3. Step 3: Cross multiply
    525,296.84x = 788,070 × 170,311.10
  4. Step 4: Simplify right side
    525,296.84x = 134,217,068,577
  5. Step 5: Solve for x
    x = 134,217,068,577/525,296.84
  6. Step 6: Final answer
    x = 255,507.09

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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.