Home / 1,191,193.17-1,643,841.18-647,318.67

Finding the Fourth Proportional to 1,191,193.17, 1,643,841.18 and 647,318.67

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Solution

The fourth proportional to 1,191,193.17, 1,643,841.18 and 647,318.67 is: 893,296.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,193.17 : 1,643,841.18 = 647,318.67 : x
  2. Step 2: Convert to fraction form
    1,191,193.17/1,643,841.18 = 647,318.67/x
  3. Step 3: Cross multiply
    1,191,193.17x = 1,643,841.18 × 647,318.67
  4. Step 4: Simplify right side
    1,191,193.17x = 1,064,089,086,328.83
  5. Step 5: Solve for x
    x = 1,064,089,086,328.83/1,191,193.17
  6. Step 6: Final answer
    x = 893,296.83

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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.