Home / 1,189,466.89-1,641,443.72-645,591.00

Finding the Fourth Proportional to 1,189,466.89, 1,641,443.72 and 645,591.00

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Solution

The fourth proportional to 1,189,466.89, 1,641,443.72 and 645,591.00 is: 890,904.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,466.89 : 1,641,443.72 = 645,591.00 : x
  2. Step 2: Convert to fraction form
    1,189,466.89/1,641,443.72 = 645,591.00/x
  3. Step 3: Cross multiply
    1,189,466.89x = 1,641,443.72 × 645,591.00
  4. Step 4: Simplify right side
    1,189,466.89x = 1,059,701,295,565.98
  5. Step 5: Solve for x
    x = 1,059,701,295,565.98/1,189,466.89
  6. Step 6: Final answer
    x = 890,904.41

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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.