Home / 528,039.20-791,864.40-173,064.80

Finding the Fourth Proportional to 528,039.20, 791,864.40 and 173,064.80

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Solution

The fourth proportional to 528,039.20, 791,864.40 and 173,064.80 is: 259,533.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,039.20 : 791,864.40 = 173,064.80 : x
  2. Step 2: Convert to fraction form
    528,039.20/791,864.40 = 173,064.80/x
  3. Step 3: Cross multiply
    528,039.20x = 791,864.40 × 173,064.80
  4. Step 4: Simplify right side
    528,039.20x = 137,043,854,013.12
  5. Step 5: Solve for x
    x = 137,043,854,013.12/528,039.20
  6. Step 6: Final answer
    x = 259,533.49

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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.