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Finding the Fourth Proportional to 416,502.80, 574,878.60 and 373,987.28

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Solution

The fourth proportional to 416,502.80, 574,878.60 and 373,987.28 is: 516,196.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,502.80 : 574,878.60 = 373,987.28 : x
  2. Step 2: Convert to fraction form
    416,502.80/574,878.60 = 373,987.28/x
  3. Step 3: Cross multiply
    416,502.80x = 574,878.60 × 373,987.28
  4. Step 4: Simplify right side
    416,502.80x = 214,997,283,944.21
  5. Step 5: Solve for x
    x = 214,997,283,944.21/416,502.80
  6. Step 6: Final answer
    x = 516,196.49

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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.