Home / 921,999.27-1,382,210.07-353,788.14

Finding the Fourth Proportional to 921,999.27, 1,382,210.07 and 353,788.14

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Solution

The fourth proportional to 921,999.27, 1,382,210.07 and 353,788.14 is: 530,379.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,999.27 : 1,382,210.07 = 353,788.14 : x
  2. Step 2: Convert to fraction form
    921,999.27/1,382,210.07 = 353,788.14/x
  3. Step 3: Cross multiply
    921,999.27x = 1,382,210.07 × 353,788.14
  4. Step 4: Simplify right side
    921,999.27x = 489,009,529,754.57
  5. Step 5: Solve for x
    x = 489,009,529,754.57/921,999.27
  6. Step 6: Final answer
    x = 530,379.52

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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.