Home / 919,662.95-1,379,727.77-288,582.23

Finding the Fourth Proportional to 919,662.95, 1,379,727.77 and 288,582.23

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Solution

The fourth proportional to 919,662.95, 1,379,727.77 and 288,582.23 is: 432,946.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,662.95 : 1,379,727.77 = 288,582.23 : x
  2. Step 2: Convert to fraction form
    919,662.95/1,379,727.77 = 288,582.23/x
  3. Step 3: Cross multiply
    919,662.95x = 1,379,727.77 × 288,582.23
  4. Step 4: Simplify right side
    919,662.95x = 398,164,908,317.98
  5. Step 5: Solve for x
    x = 398,164,908,317.98/919,662.95
  6. Step 6: Final answer
    x = 432,946.56

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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.