Home / 1,038,656.40-1,557,765.90-439,637.10

Finding the Fourth Proportional to 1,038,656.40, 1,557,765.90 and 439,637.10

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Solution

The fourth proportional to 1,038,656.40, 1,557,765.90 and 439,637.10 is: 659,363.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,656.40 : 1,557,765.90 = 439,637.10 : x
  2. Step 2: Convert to fraction form
    1,038,656.40/1,557,765.90 = 439,637.10/x
  3. Step 3: Cross multiply
    1,038,656.40x = 1,557,765.90 × 439,637.10
  4. Step 4: Simplify right side
    1,038,656.40x = 684,851,682,754.89
  5. Step 5: Solve for x
    x = 684,851,682,754.89/1,038,656.40
  6. Step 6: Final answer
    x = 659,363.08

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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.