Home / 780,998.11-1,077,877.20-436,853.16

Finding the Fourth Proportional to 780,998.11, 1,077,877.20 and 436,853.16

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Solution

The fourth proportional to 780,998.11, 1,077,877.20 and 436,853.16 is: 602,913.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,998.11 : 1,077,877.20 = 436,853.16 : x
  2. Step 2: Convert to fraction form
    780,998.11/1,077,877.20 = 436,853.16/x
  3. Step 3: Cross multiply
    780,998.11x = 1,077,877.20 × 436,853.16
  4. Step 4: Simplify right side
    780,998.11x = 470,874,060,911.95
  5. Step 5: Solve for x
    x = 470,874,060,911.95/780,998.11
  6. Step 6: Final answer
    x = 602,913.19

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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.