Home / 1,038,526.70-1,557,790.05-639,617.90

Finding the Fourth Proportional to 1,038,526.70, 1,557,790.05 and 639,617.90

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Solution

The fourth proportional to 1,038,526.70, 1,557,790.05 and 639,617.90 is: 959,426.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,526.70 : 1,557,790.05 = 639,617.90 : x
  2. Step 2: Convert to fraction form
    1,038,526.70/1,557,790.05 = 639,617.90/x
  3. Step 3: Cross multiply
    1,038,526.70x = 1,557,790.05 × 639,617.90
  4. Step 4: Simplify right side
    1,038,526.70x = 996,390,400,421.90
  5. Step 5: Solve for x
    x = 996,390,400,421.90/1,038,526.70
  6. Step 6: Final answer
    x = 959,426.85

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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.