Home / 837,880.60-1,154,072.66-643,917.16

Finding the Fourth Proportional to 837,880.60, 1,154,072.66 and 643,917.16

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Solution

The fourth proportional to 837,880.60, 1,154,072.66 and 643,917.16 is: 886,913.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,880.60 : 1,154,072.66 = 643,917.16 : x
  2. Step 2: Convert to fraction form
    837,880.60/1,154,072.66 = 643,917.16/x
  3. Step 3: Cross multiply
    837,880.60x = 1,154,072.66 × 643,917.16
  4. Step 4: Simplify right side
    837,880.60x = 743,127,191,505.89
  5. Step 5: Solve for x
    x = 743,127,191,505.89/837,880.60
  6. Step 6: Final answer
    x = 886,913.00

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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.