Home / 1,191,430.05-1,644,190.10-647,565.67

Finding the Fourth Proportional to 1,191,430.05, 1,644,190.10 and 647,565.67

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Solution

The fourth proportional to 1,191,430.05, 1,644,190.10 and 647,565.67 is: 893,649.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,430.05 : 1,644,190.10 = 647,565.67 : x
  2. Step 2: Convert to fraction form
    1,191,430.05/1,644,190.10 = 647,565.67/x
  3. Step 3: Cross multiply
    1,191,430.05x = 1,644,190.10 × 647,565.67
  4. Step 4: Simplify right side
    1,191,430.05x = 1,064,721,063,713.87
  5. Step 5: Solve for x
    x = 1,064,721,063,713.87/1,191,430.05
  6. Step 6: Final answer
    x = 893,649.66

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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.