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Finding the Fourth Proportional to 592,651.31, 817,858.76 and 320,719.16

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Solution

The fourth proportional to 592,651.31, 817,858.76 and 320,719.16 is: 442,592.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,651.31 : 817,858.76 = 320,719.16 : x
  2. Step 2: Convert to fraction form
    592,651.31/817,858.76 = 320,719.16/x
  3. Step 3: Cross multiply
    592,651.31x = 817,858.76 × 320,719.16
  4. Step 4: Simplify right side
    592,651.31x = 262,302,968,812.95
  5. Step 5: Solve for x
    x = 262,302,968,812.95/592,651.31
  6. Step 6: Final answer
    x = 442,592.41

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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.