Home / 528,623.64-729,501.34-286,906.22

Finding the Fourth Proportional to 528,623.64, 729,501.34 and 286,906.22

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Solution

The fourth proportional to 528,623.64, 729,501.34 and 286,906.22 is: 395,930.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,623.64 : 729,501.34 = 286,906.22 : x
  2. Step 2: Convert to fraction form
    528,623.64/729,501.34 = 286,906.22/x
  3. Step 3: Cross multiply
    528,623.64x = 729,501.34 × 286,906.22
  4. Step 4: Simplify right side
    528,623.64x = 209,298,471,944.34
  5. Step 5: Solve for x
    x = 209,298,471,944.34/528,623.64
  6. Step 6: Final answer
    x = 395,930.97

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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.