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Finding the Fourth Proportional to 1,046,311.30, 1,569,466.95 and 836,359.30

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Solution

The fourth proportional to 1,046,311.30, 1,569,466.95 and 836,359.30 is: 1,254,538.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046,311.30 : 1,569,466.95 = 836,359.30 : x
  2. Step 2: Convert to fraction form
    1,046,311.30/1,569,466.95 = 836,359.30/x
  3. Step 3: Cross multiply
    1,046,311.30x = 1,569,466.95 × 836,359.30
  4. Step 4: Simplify right side
    1,046,311.30x = 1,312,638,279,675.14
  5. Step 5: Solve for x
    x = 1,312,638,279,675.14/1,046,311.30
  6. Step 6: Final answer
    x = 1,254,538.95

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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.