Home / 1,320,076-1,980,947-561,916.32

Finding the Fourth Proportional to 1,320,076, 1,980,947 and 561,916.32

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Solution

The fourth proportional to 1,320,076, 1,980,947 and 561,916.32 is: 843,229.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,076 : 1,980,947 = 561,916.32 : x
  2. Step 2: Convert to fraction form
    1,320,076/1,980,947 = 561,916.32/x
  3. Step 3: Cross multiply
    1,320,076x = 1,980,947 × 561,916.32
  4. Step 4: Simplify right side
    1,320,076x = 1,113,126,448,355.04
  5. Step 5: Solve for x
    x = 1,113,126,448,355.04/1,320,076
  6. Step 6: Final answer
    x = 843,229.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.