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Finding the Fourth Proportional to 593,740, 819,364.08 and 355,276

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Solution

The fourth proportional to 593,740, 819,364.08 and 355,276 is: 490,282.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,740 : 819,364.08 = 355,276 : x
  2. Step 2: Convert to fraction form
    593,740/819,364.08 = 355,276/x
  3. Step 3: Cross multiply
    593,740x = 819,364.08 × 355,276
  4. Step 4: Simplify right side
    593,740x = 291,100,392,886.08
  5. Step 5: Solve for x
    x = 291,100,392,886.08/593,740
  6. Step 6: Final answer
    x = 490,282.60

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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.