Home / 778,859.30-1,167,828.15-405,611.30

Finding the Fourth Proportional to 778,859.30, 1,167,828.15 and 405,611.30

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Solution

The fourth proportional to 778,859.30, 1,167,828.15 and 405,611.30 is: 608,176.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,859.30 : 1,167,828.15 = 405,611.30 : x
  2. Step 2: Convert to fraction form
    778,859.30/1,167,828.15 = 405,611.30/x
  3. Step 3: Cross multiply
    778,859.30x = 1,167,828.15 × 405,611.30
  4. Step 4: Simplify right side
    778,859.30x = 473,684,294,098.10
  5. Step 5: Solve for x
    x = 473,684,294,098.10/778,859.30
  6. Step 6: Final answer
    x = 608,176.98

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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.