Home / 2,158,442.80-2,978,655.40-1,191,574.40

Finding the Fourth Proportional to 2,158,442.80, 2,978,655.40 and 1,191,574.40

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Solution

The fourth proportional to 2,158,442.80, 2,978,655.40 and 1,191,574.40 is: 1,644,375.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,442.80 : 2,978,655.40 = 1,191,574.40 : x
  2. Step 2: Convert to fraction form
    2,158,442.80/2,978,655.40 = 1,191,574.40/x
  3. Step 3: Cross multiply
    2,158,442.80x = 2,978,655.40 × 1,191,574.40
  4. Step 4: Simplify right side
    2,158,442.80x = 3,549,289,521,061.76
  5. Step 5: Solve for x
    x = 3,549,289,521,061.76/2,158,442.80
  6. Step 6: Final answer
    x = 1,644,375.07

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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.