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Finding the Fourth Proportional to 572,569.88, 790,170.54 and 317,944.76

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Solution

The fourth proportional to 572,569.88, 790,170.54 and 317,944.76 is: 438,777.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,569.88 : 790,170.54 = 317,944.76 : x
  2. Step 2: Convert to fraction form
    572,569.88/790,170.54 = 317,944.76/x
  3. Step 3: Cross multiply
    572,569.88x = 790,170.54 × 317,944.76
  4. Step 4: Simplify right side
    572,569.88x = 251,230,582,699.37
  5. Step 5: Solve for x
    x = 251,230,582,699.37/572,569.88
  6. Step 6: Final answer
    x = 438,777.15

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Double scale
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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.