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Finding the Fourth Proportional to 1,913,696.64, 2,870,548.98 and 1,796,779.62

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Solution

The fourth proportional to 1,913,696.64, 2,870,548.98 and 1,796,779.62 is: 2,695,173.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,696.64 : 2,870,548.98 = 1,796,779.62 : x
  2. Step 2: Convert to fraction form
    1,913,696.64/2,870,548.98 = 1,796,779.62/x
  3. Step 3: Cross multiply
    1,913,696.64x = 2,870,548.98 × 1,796,779.62
  4. Step 4: Simplify right side
    1,913,696.64x = 5,157,743,905,475.79
  5. Step 5: Solve for x
    x = 5,157,743,905,475.79/1,913,696.64
  6. Step 6: Final answer
    x = 2,695,173.20

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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.