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Finding the Fourth Proportional to 1,569,504.70, 2,356,006.65 and 860,916.70

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Solution

The fourth proportional to 1,569,504.70, 2,356,006.65 and 860,916.70 is: 1,292,334.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569,504.70 : 2,356,006.65 = 860,916.70 : x
  2. Step 2: Convert to fraction form
    1,569,504.70/2,356,006.65 = 860,916.70/x
  3. Step 3: Cross multiply
    1,569,504.70x = 2,356,006.65 × 860,916.70
  4. Step 4: Simplify right side
    1,569,504.70x = 2,028,325,470,296.06
  5. Step 5: Solve for x
    x = 2,028,325,470,296.06/1,569,504.70
  6. Step 6: Final answer
    x = 1,292,334.75

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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.