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Finding the Fourth Proportional to 570,157.07, 855,483.64 and 357,412.55

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Solution

The fourth proportional to 570,157.07, 855,483.64 and 357,412.55 is: 536,274.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,157.07 : 855,483.64 = 357,412.55 : x
  2. Step 2: Convert to fraction form
    570,157.07/855,483.64 = 357,412.55/x
  3. Step 3: Cross multiply
    570,157.07x = 855,483.64 × 357,412.55
  4. Step 4: Simplify right side
    570,157.07x = 305,760,584,084.73
  5. Step 5: Solve for x
    x = 305,760,584,084.73/570,157.07
  6. Step 6: Final answer
    x = 536,274.31

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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.