Home / 839,237.80-1,259,228.76-439,783.60

Finding the Fourth Proportional to 839,237.80, 1,259,228.76 and 439,783.60

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Solution

The fourth proportional to 839,237.80, 1,259,228.76 and 439,783.60 is: 659,870.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,237.80 : 1,259,228.76 = 439,783.60 : x
  2. Step 2: Convert to fraction form
    839,237.80/1,259,228.76 = 439,783.60/x
  3. Step 3: Cross multiply
    839,237.80x = 1,259,228.76 × 439,783.60
  4. Step 4: Simplify right side
    839,237.80x = 553,788,157,296.34
  5. Step 5: Solve for x
    x = 553,788,157,296.34/839,237.80
  6. Step 6: Final answer
    x = 659,870.37

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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.