Home / 698,980.80-1,048,279.20-193,421.76

Finding the Fourth Proportional to 698,980.80, 1,048,279.20 and 193,421.76

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Solution

The fourth proportional to 698,980.80, 1,048,279.20 and 193,421.76 is: 290,079.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,980.80 : 1,048,279.20 = 193,421.76 : x
  2. Step 2: Convert to fraction form
    698,980.80/1,048,279.20 = 193,421.76/x
  3. Step 3: Cross multiply
    698,980.80x = 1,048,279.20 × 193,421.76
  4. Step 4: Simplify right side
    698,980.80x = 202,760,007,835.39
  5. Step 5: Solve for x
    x = 202,760,007,835.39/698,980.80
  6. Step 6: Final answer
    x = 290,079.51

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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.