Home / 828,683.98-1,143,595.70-489,152.23

Finding the Fourth Proportional to 828,683.98, 1,143,595.70 and 489,152.23

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Solution

The fourth proportional to 828,683.98, 1,143,595.70 and 489,152.23 is: 675,037.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,683.98 : 1,143,595.70 = 489,152.23 : x
  2. Step 2: Convert to fraction form
    828,683.98/1,143,595.70 = 489,152.23/x
  3. Step 3: Cross multiply
    828,683.98x = 1,143,595.70 × 489,152.23
  4. Step 4: Simplify right side
    828,683.98x = 559,392,383,402.98
  5. Step 5: Solve for x
    x = 559,392,383,402.98/828,683.98
  6. Step 6: Final answer
    x = 675,037.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.