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Finding the Fourth Proportional to 458,791, 633,131.58 and 257,591.32

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Solution

The fourth proportional to 458,791, 633,131.58 and 257,591.32 is: 355,476.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,791 : 633,131.58 = 257,591.32 : x
  2. Step 2: Convert to fraction form
    458,791/633,131.58 = 257,591.32/x
  3. Step 3: Cross multiply
    458,791x = 633,131.58 × 257,591.32
  4. Step 4: Simplify right side
    458,791x = 163,089,199,425.89
  5. Step 5: Solve for x
    x = 163,089,199,425.89/458,791
  6. Step 6: Final answer
    x = 355,476.02

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1.5x scale

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.