Home / 926,813.80-1,390,998.30-453,903.40

Finding the Fourth Proportional to 926,813.80, 1,390,998.30 and 453,903.40

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Solution

The fourth proportional to 926,813.80, 1,390,998.30 and 453,903.40 is: 681,235.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,813.80 : 1,390,998.30 = 453,903.40 : x
  2. Step 2: Convert to fraction form
    926,813.80/1,390,998.30 = 453,903.40/x
  3. Step 3: Cross multiply
    926,813.80x = 1,390,998.30 × 453,903.40
  4. Step 4: Simplify right side
    926,813.80x = 631,378,857,764.22
  5. Step 5: Solve for x
    x = 631,378,857,764.22/926,813.80
  6. Step 6: Final answer
    x = 681,235.93

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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.