Home / 386,541.51-533,269.80-259,258.11

Finding the Fourth Proportional to 386,541.51, 533,269.80 and 259,258.11

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Solution

The fourth proportional to 386,541.51, 533,269.80 and 259,258.11 is: 357,670.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,541.51 : 533,269.80 = 259,258.11 : x
  2. Step 2: Convert to fraction form
    386,541.51/533,269.80 = 259,258.11/x
  3. Step 3: Cross multiply
    386,541.51x = 533,269.80 × 259,258.11
  4. Step 4: Simplify right side
    386,541.51x = 138,254,520,468.08
  5. Step 5: Solve for x
    x = 138,254,520,468.08/386,541.51
  6. Step 6: Final answer
    x = 357,670.57

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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.