Home / 726,563.20-1,089,844.80-637,916.80

Finding the Fourth Proportional to 726,563.20, 1,089,844.80 and 637,916.80

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Solution

The fourth proportional to 726,563.20, 1,089,844.80 and 637,916.80 is: 956,875.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,563.20 : 1,089,844.80 = 637,916.80 : x
  2. Step 2: Convert to fraction form
    726,563.20/1,089,844.80 = 637,916.80/x
  3. Step 3: Cross multiply
    726,563.20x = 1,089,844.80 × 637,916.80
  4. Step 4: Simplify right side
    726,563.20x = 695,230,307,312.64
  5. Step 5: Solve for x
    x = 695,230,307,312.64/726,563.20
  6. Step 6: Final answer
    x = 956,875.20

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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.