Home / 692,581.60-1,038,775.20-219,314.80

Finding the Fourth Proportional to 692,581.60, 1,038,775.20 and 219,314.80

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Solution

The fourth proportional to 692,581.60, 1,038,775.20 and 219,314.80 is: 328,941.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,581.60 : 1,038,775.20 = 219,314.80 : x
  2. Step 2: Convert to fraction form
    692,581.60/1,038,775.20 = 219,314.80/x
  3. Step 3: Cross multiply
    692,581.60x = 1,038,775.20 × 219,314.80
  4. Step 4: Simplify right side
    692,581.60x = 227,818,775,232.96
  5. Step 5: Solve for x
    x = 227,818,775,232.96/692,581.60
  6. Step 6: Final answer
    x = 328,941.42

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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.