Home / 1,038,400.30-1,557,600.45-439,206.04

Finding the Fourth Proportional to 1,038,400.30, 1,557,600.45 and 439,206.04

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Solution

The fourth proportional to 1,038,400.30, 1,557,600.45 and 439,206.04 is: 658,809.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,400.30 : 1,557,600.45 = 439,206.04 : x
  2. Step 2: Convert to fraction form
    1,038,400.30/1,557,600.45 = 439,206.04/x
  3. Step 3: Cross multiply
    1,038,400.30x = 1,557,600.45 × 439,206.04
  4. Step 4: Simplify right side
    1,038,400.30x = 684,107,525,546.72
  5. Step 5: Solve for x
    x = 684,107,525,546.72/1,038,400.30
  6. Step 6: Final answer
    x = 658,809.06

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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.