Home / 1,119,664.40-1,681,246.20-647,272.40

Finding the Fourth Proportional to 1,119,664.40, 1,681,246.20 and 647,272.40

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Solution

The fourth proportional to 1,119,664.40, 1,681,246.20 and 647,272.40 is: 971,920.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,664.40 : 1,681,246.20 = 647,272.40 : x
  2. Step 2: Convert to fraction form
    1,119,664.40/1,681,246.20 = 647,272.40/x
  3. Step 3: Cross multiply
    1,119,664.40x = 1,681,246.20 × 647,272.40
  4. Step 4: Simplify right side
    1,119,664.40x = 1,088,224,262,864.88
  5. Step 5: Solve for x
    x = 1,088,224,262,864.88/1,119,664.40
  6. Step 6: Final answer
    x = 971,920.04

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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.