Home / 828,992.10-1,240,535.70-575,081.40

Finding the Fourth Proportional to 828,992.10, 1,240,535.70 and 575,081.40

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Solution

The fourth proportional to 828,992.10, 1,240,535.70 and 575,081.40 is: 860,573.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,992.10 : 1,240,535.70 = 575,081.40 : x
  2. Step 2: Convert to fraction form
    828,992.10/1,240,535.70 = 575,081.40/x
  3. Step 3: Cross multiply
    828,992.10x = 1,240,535.70 × 575,081.40
  4. Step 4: Simplify right side
    828,992.10x = 713,409,007,105.98
  5. Step 5: Solve for x
    x = 713,409,007,105.98/828,992.10
  6. Step 6: Final answer
    x = 860,573.95

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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.