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Finding the Fourth Proportional to 572,468.64, 790,008.48 and 317,820.48

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Solution

The fourth proportional to 572,468.64, 790,008.48 and 317,820.48 is: 438,593.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,468.64 : 790,008.48 = 317,820.48 : x
  2. Step 2: Convert to fraction form
    572,468.64/790,008.48 = 317,820.48/x
  3. Step 3: Cross multiply
    572,468.64x = 790,008.48 × 317,820.48
  4. Step 4: Simplify right side
    572,468.64x = 251,080,874,317.67
  5. Step 5: Solve for x
    x = 251,080,874,317.67/572,468.64
  6. Step 6: Final answer
    x = 438,593.24

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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.