Home / 530,845.72-732,583.92-289,135.60

Finding the Fourth Proportional to 530,845.72, 732,583.92 and 289,135.60

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Solution

The fourth proportional to 530,845.72, 732,583.92 and 289,135.60 is: 399,016.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,845.72 : 732,583.92 = 289,135.60 : x
  2. Step 2: Convert to fraction form
    530,845.72/732,583.92 = 289,135.60/x
  3. Step 3: Cross multiply
    530,845.72x = 732,583.92 × 289,135.60
  4. Step 4: Simplify right side
    530,845.72x = 211,816,091,259.55
  5. Step 5: Solve for x
    x = 211,816,091,259.55/530,845.72
  6. Step 6: Final answer
    x = 399,016.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.