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Finding the Fourth Proportional to 1,935,775.03, 2,671,703.92 and 1,120,428.28

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Solution

The fourth proportional to 1,935,775.03, 2,671,703.92 and 1,120,428.28 is: 1,546,384.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935,775.03 : 2,671,703.92 = 1,120,428.28 : x
  2. Step 2: Convert to fraction form
    1,935,775.03/2,671,703.92 = 1,120,428.28/x
  3. Step 3: Cross multiply
    1,935,775.03x = 2,671,703.92 × 1,120,428.28
  4. Step 4: Simplify right side
    1,935,775.03x = 2,993,452,635,646.23
  5. Step 5: Solve for x
    x = 2,993,452,635,646.23/1,935,775.03
  6. Step 6: Final answer
    x = 1,546,384.57

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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.