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Finding the Fourth Proportional to 559,446.66, 772,009.56 and 317,697.30

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Solution

The fourth proportional to 559,446.66, 772,009.56 and 317,697.30 is: 438,407.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,446.66 : 772,009.56 = 317,697.30 : x
  2. Step 2: Convert to fraction form
    559,446.66/772,009.56 = 317,697.30/x
  3. Step 3: Cross multiply
    559,446.66x = 772,009.56 × 317,697.30
  4. Step 4: Simplify right side
    559,446.66x = 245,265,352,786.19
  5. Step 5: Solve for x
    x = 245,265,352,786.19/559,446.66
  6. Step 6: Final answer
    x = 438,407.04

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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.