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Finding the Fourth Proportional to 2,157,955, 3,237,088.02 and 828,259

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Solution

The fourth proportional to 2,157,955, 3,237,088.02 and 828,259 is: 1,242,448.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,955 : 3,237,088.02 = 828,259 : x
  2. Step 2: Convert to fraction form
    2,157,955/3,237,088.02 = 828,259/x
  3. Step 3: Cross multiply
    2,157,955x = 3,237,088.02 × 828,259
  4. Step 4: Simplify right side
    2,157,955x = 2,681,147,286,357.18
  5. Step 5: Solve for x
    x = 2,681,147,286,357.18/2,157,955
  6. Step 6: Final answer
    x = 1,242,448.19

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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.