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Finding the Fourth Proportional to 6,630,740.71, 9,946,111.43 and 1,838,430.05

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Solution

The fourth proportional to 6,630,740.71, 9,946,111.43 and 1,838,430.05 is: 2,757,645.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,630,740.71 : 9,946,111.43 = 1,838,430.05 : x
  2. Step 2: Convert to fraction form
    6,630,740.71/9,946,111.43 = 1,838,430.05/x
  3. Step 3: Cross multiply
    6,630,740.71x = 9,946,111.43 × 1,838,430.05
  4. Step 4: Simplify right side
    6,630,740.71x = 18,285,230,088,425.99
  5. Step 5: Solve for x
    x = 18,285,230,088,425.99/6,630,740.71
  6. Step 6: Final answer
    x = 2,757,645.17

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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.