Home / 927,879.20-1,389,706.32-553,127.84

Finding the Fourth Proportional to 927,879.20, 1,389,706.32 and 553,127.84

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Solution

The fourth proportional to 927,879.20, 1,389,706.32 and 553,127.84 is: 828,432.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,879.20 : 1,389,706.32 = 553,127.84 : x
  2. Step 2: Convert to fraction form
    927,879.20/1,389,706.32 = 553,127.84/x
  3. Step 3: Cross multiply
    927,879.20x = 1,389,706.32 × 553,127.84
  4. Step 4: Simplify right side
    927,879.20x = 768,685,255,015.95
  5. Step 5: Solve for x
    x = 768,685,255,015.95/927,879.20
  6. Step 6: Final answer
    x = 828,432.47

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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.