Home / 827,139.40-1,240,854.90-294,969.40

Finding the Fourth Proportional to 827,139.40, 1,240,854.90 and 294,969.40

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Solution

The fourth proportional to 827,139.40, 1,240,854.90 and 294,969.40 is: 442,506.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,139.40 : 1,240,854.90 = 294,969.40 : x
  2. Step 2: Convert to fraction form
    827,139.40/1,240,854.90 = 294,969.40/x
  3. Step 3: Cross multiply
    827,139.40x = 1,240,854.90 × 294,969.40
  4. Step 4: Simplify right side
    827,139.40x = 366,014,225,340.06
  5. Step 5: Solve for x
    x = 366,014,225,340.06/827,139.40
  6. Step 6: Final answer
    x = 442,506.09

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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.