Home / 385,087.20-577,323.60-163,288.80

Finding the Fourth Proportional to 385,087.20, 577,323.60 and 163,288.80

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Solution

The fourth proportional to 385,087.20, 577,323.60 and 163,288.80 is: 244,802.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,087.20 : 577,323.60 = 163,288.80 : x
  2. Step 2: Convert to fraction form
    385,087.20/577,323.60 = 163,288.80/x
  3. Step 3: Cross multiply
    385,087.20x = 577,323.60 × 163,288.80
  4. Step 4: Simplify right side
    385,087.20x = 94,270,477,855.68
  5. Step 5: Solve for x
    x = 94,270,477,855.68/385,087.20
  6. Step 6: Final answer
    x = 244,802.94

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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.