Home / 1,038,638.40-1,557,957.60-439,400.40

Finding the Fourth Proportional to 1,038,638.40, 1,557,957.60 and 439,400.40

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Solution

The fourth proportional to 1,038,638.40, 1,557,957.60 and 439,400.40 is: 659,100.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,638.40 : 1,557,957.60 = 439,400.40 : x
  2. Step 2: Convert to fraction form
    1,038,638.40/1,557,957.60 = 439,400.40/x
  3. Step 3: Cross multiply
    1,038,638.40x = 1,557,957.60 × 439,400.40
  4. Step 4: Simplify right side
    1,038,638.40x = 684,567,192,623.04
  5. Step 5: Solve for x
    x = 684,567,192,623.04/1,038,638.40
  6. Step 6: Final answer
    x = 659,100.60

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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.