Home / 516,261.83-712,437.05-289,902.47

Finding the Fourth Proportional to 516,261.83, 712,437.05 and 289,902.47

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Solution

The fourth proportional to 516,261.83, 712,437.05 and 289,902.47 is: 400,063.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,261.83 : 712,437.05 = 289,902.47 : x
  2. Step 2: Convert to fraction form
    516,261.83/712,437.05 = 289,902.47/x
  3. Step 3: Cross multiply
    516,261.83x = 712,437.05 × 289,902.47
  4. Step 4: Simplify right side
    516,261.83x = 206,537,258,718.02
  5. Step 5: Solve for x
    x = 206,537,258,718.02/516,261.83
  6. Step 6: Final answer
    x = 400,063.01

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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.