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Finding the Fourth Proportional to 2,934,847.60, 4,402,271.40 and 804,928.30

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Solution

The fourth proportional to 2,934,847.60, 4,402,271.40 and 804,928.30 is: 1,207,392.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,934,847.60 : 4,402,271.40 = 804,928.30 : x
  2. Step 2: Convert to fraction form
    2,934,847.60/4,402,271.40 = 804,928.30/x
  3. Step 3: Cross multiply
    2,934,847.60x = 4,402,271.40 × 804,928.30
  4. Step 4: Simplify right side
    2,934,847.60x = 3,543,512,834,140.62
  5. Step 5: Solve for x
    x = 3,543,512,834,140.62/2,934,847.60
  6. Step 6: Final answer
    x = 1,207,392.45

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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.