Home / 1,678,465.32-2,517,695.67-779,415.45

Finding the Fourth Proportional to 1,678,465.32, 2,517,695.67 and 779,415.45

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Solution

The fourth proportional to 1,678,465.32, 2,517,695.67 and 779,415.45 is: 1,169,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,465.32 : 2,517,695.67 = 779,415.45 : x
  2. Step 2: Convert to fraction form
    1,678,465.32/2,517,695.67 = 779,415.45/x
  3. Step 3: Cross multiply
    1,678,465.32x = 2,517,695.67 × 779,415.45
  4. Step 4: Simplify right side
    1,678,465.32x = 1,962,330,903,596.10
  5. Step 5: Solve for x
    x = 1,962,330,903,596.10/1,678,465.32
  6. Step 6: Final answer
    x = 1,169,122.10

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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.