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Finding the Fourth Proportional to 1,946,832.16, 2,686,600.08 and 1,087,404.64

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Solution

The fourth proportional to 1,946,832.16, 2,686,600.08 and 1,087,404.64 is: 1,500,602.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946,832.16 : 2,686,600.08 = 1,087,404.64 : x
  2. Step 2: Convert to fraction form
    1,946,832.16/2,686,600.08 = 1,087,404.64/x
  3. Step 3: Cross multiply
    1,946,832.16x = 2,686,600.08 × 1,087,404.64
  4. Step 4: Simplify right side
    1,946,832.16x = 2,921,421,392,816.37
  5. Step 5: Solve for x
    x = 2,921,421,392,816.37/1,946,832.16
  6. Step 6: Final answer
    x = 1,500,602.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.