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Finding the Fourth Proportional to 5,319,643.40, 7,979,465.10 and 3,696,014.60

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Solution

The fourth proportional to 5,319,643.40, 7,979,465.10 and 3,696,014.60 is: 5,544,021.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319,643.40 : 7,979,465.10 = 3,696,014.60 : x
  2. Step 2: Convert to fraction form
    5,319,643.40/7,979,465.10 = 3,696,014.60/x
  3. Step 3: Cross multiply
    5,319,643.40x = 7,979,465.10 × 3,696,014.60
  4. Step 4: Simplify right side
    5,319,643.40x = 29,492,219,509,790.46
  5. Step 5: Solve for x
    x = 29,492,219,509,790.46/5,319,643.40
  6. Step 6: Final answer
    x = 5,544,021.90

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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.