Home / 1,205,374.09-1,663,411.01-661,518.67

Finding the Fourth Proportional to 1,205,374.09, 1,663,411.01 and 661,518.67

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Solution

The fourth proportional to 1,205,374.09, 1,663,411.01 and 661,518.67 is: 912,892.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,374.09 : 1,663,411.01 = 661,518.67 : x
  2. Step 2: Convert to fraction form
    1,205,374.09/1,663,411.01 = 661,518.67/x
  3. Step 3: Cross multiply
    1,205,374.09x = 1,663,411.01 × 661,518.67
  4. Step 4: Simplify right side
    1,205,374.09x = 1,100,377,444,911.24
  5. Step 5: Solve for x
    x = 1,100,377,444,911.24/1,205,374.09
  6. Step 6: Final answer
    x = 912,892.90

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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.