Home / 1,038,403.80-1,557,605.70-439,209.54

Finding the Fourth Proportional to 1,038,403.80, 1,557,605.70 and 439,209.54

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Solution

The fourth proportional to 1,038,403.80, 1,557,605.70 and 439,209.54 is: 658,814.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,403.80 : 1,557,605.70 = 439,209.54 : x
  2. Step 2: Convert to fraction form
    1,038,403.80/1,557,605.70 = 439,209.54/x
  3. Step 3: Cross multiply
    1,038,403.80x = 1,557,605.70 × 439,209.54
  4. Step 4: Simplify right side
    1,038,403.80x = 684,115,282,998.38
  5. Step 5: Solve for x
    x = 684,115,282,998.38/1,038,403.80
  6. Step 6: Final answer
    x = 658,814.31

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1.5x scale

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.