Home / 1,191,341.30-1,644,066.79-647,487.86

Finding the Fourth Proportional to 1,191,341.30, 1,644,066.79 and 647,487.86

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Solution

The fourth proportional to 1,191,341.30, 1,644,066.79 and 647,487.86 is: 893,541.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,341.30 : 1,644,066.79 = 647,487.86 : x
  2. Step 2: Convert to fraction form
    1,191,341.30/1,644,066.79 = 647,487.86/x
  3. Step 3: Cross multiply
    1,191,341.30x = 1,644,066.79 × 647,487.86
  4. Step 4: Simplify right side
    1,191,341.30x = 1,064,513,287,554.17
  5. Step 5: Solve for x
    x = 1,064,513,287,554.17/1,191,341.30
  6. Step 6: Final answer
    x = 893,541.83

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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.