Home / 813,276.90-1,219,915.35-529,841.70

Finding the Fourth Proportional to 813,276.90, 1,219,915.35 and 529,841.70

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Solution

The fourth proportional to 813,276.90, 1,219,915.35 and 529,841.70 is: 794,762.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,276.90 : 1,219,915.35 = 529,841.70 : x
  2. Step 2: Convert to fraction form
    813,276.90/1,219,915.35 = 529,841.70/x
  3. Step 3: Cross multiply
    813,276.90x = 1,219,915.35 × 529,841.70
  4. Step 4: Simplify right side
    813,276.90x = 646,362,022,900.10
  5. Step 5: Solve for x
    x = 646,362,022,900.10/813,276.90
  6. Step 6: Final answer
    x = 794,762.55

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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.