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Finding the Fourth Proportional to 1,948,809.60, 2,920,881.60 and 1,001,692.80

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Solution

The fourth proportional to 1,948,809.60, 2,920,881.60 and 1,001,692.80 is: 1,501,340.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948,809.60 : 2,920,881.60 = 1,001,692.80 : x
  2. Step 2: Convert to fraction form
    1,948,809.60/2,920,881.60 = 1,001,692.80/x
  3. Step 3: Cross multiply
    1,948,809.60x = 2,920,881.60 × 1,001,692.80
  4. Step 4: Simplify right side
    1,948,809.60x = 2,925,826,068,372.48
  5. Step 5: Solve for x
    x = 2,925,826,068,372.48/1,948,809.60
  6. Step 6: Final answer
    x = 1,501,340.14

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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.