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Finding the Fourth Proportional to 1,763,602.60, 2,640,916.80 and 1,162,740.76

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Solution

The fourth proportional to 1,763,602.60, 2,640,916.80 and 1,162,740.76 is: 1,741,152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,763,602.60 : 2,640,916.80 = 1,162,740.76 : x
  2. Step 2: Convert to fraction form
    1,763,602.60/2,640,916.80 = 1,162,740.76/x
  3. Step 3: Cross multiply
    1,763,602.60x = 2,640,916.80 × 1,162,740.76
  4. Step 4: Simplify right side
    1,763,602.60x = 3,070,701,607,128.77
  5. Step 5: Solve for x
    x = 3,070,701,607,128.77/1,763,602.60
  6. Step 6: Final answer
    x = 1,741,152.80

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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.