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Finding the Fourth Proportional to 355,570.40, 533,422.02 and 118,914.32

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Solution

The fourth proportional to 355,570.40, 533,422.02 and 118,914.32 is: 178,393.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,570.40 : 533,422.02 = 118,914.32 : x
  2. Step 2: Convert to fraction form
    355,570.40/533,422.02 = 118,914.32/x
  3. Step 3: Cross multiply
    355,570.40x = 533,422.02 × 118,914.32
  4. Step 4: Simplify right side
    355,570.40x = 63,431,516,781.33
  5. Step 5: Solve for x
    x = 63,431,516,781.33/355,570.40
  6. Step 6: Final answer
    x = 178,393.69

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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.