Home / 1,161,866.53-1,603,343.82-645,607.07

Finding the Fourth Proportional to 1,161,866.53, 1,603,343.82 and 645,607.07

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Solution

The fourth proportional to 1,161,866.53, 1,603,343.82 and 645,607.07 is: 890,919.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,866.53 : 1,603,343.82 = 645,607.07 : x
  2. Step 2: Convert to fraction form
    1,161,866.53/1,603,343.82 = 645,607.07/x
  3. Step 3: Cross multiply
    1,161,866.53x = 1,603,343.82 × 645,607.07
  4. Step 4: Simplify right side
    1,161,866.53x = 1,035,130,105,832.81
  5. Step 5: Solve for x
    x = 1,035,130,105,832.81/1,161,866.53
  6. Step 6: Final answer
    x = 890,919.98

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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.