Home / 831,769.20-1,248,085.80-388,537.20

Finding the Fourth Proportional to 831,769.20, 1,248,085.80 and 388,537.20

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Solution

The fourth proportional to 831,769.20, 1,248,085.80 and 388,537.20 is: 583,007.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,769.20 : 1,248,085.80 = 388,537.20 : x
  2. Step 2: Convert to fraction form
    831,769.20/1,248,085.80 = 388,537.20/x
  3. Step 3: Cross multiply
    831,769.20x = 1,248,085.80 × 388,537.20
  4. Step 4: Simplify right side
    831,769.20x = 484,927,762,091.76
  5. Step 5: Solve for x
    x = 484,927,762,091.76/831,769.20
  6. Step 6: Final answer
    x = 583,007.60

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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.