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Finding the Fourth Proportional to 531,805.87, 797,708.40 and 157,828.87

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Solution

The fourth proportional to 531,805.87, 797,708.40 and 157,828.87 is: 236,743.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,805.87 : 797,708.40 = 157,828.87 : x
  2. Step 2: Convert to fraction form
    531,805.87/797,708.40 = 157,828.87/x
  3. Step 3: Cross multiply
    531,805.87x = 797,708.40 × 157,828.87
  4. Step 4: Simplify right side
    531,805.87x = 125,901,415,361.51
  5. Step 5: Solve for x
    x = 125,901,415,361.51/531,805.87
  6. Step 6: Final answer
    x = 236,743.18

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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.