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Finding the Fourth Proportional to 559,090.19, 771,341.85 and 317,232.68

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Solution

The fourth proportional to 559,090.19, 771,341.85 and 317,232.68 is: 437,666.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,090.19 : 771,341.85 = 317,232.68 : x
  2. Step 2: Convert to fraction form
    559,090.19/771,341.85 = 317,232.68/x
  3. Step 3: Cross multiply
    559,090.19x = 771,341.85 × 317,232.68
  4. Step 4: Simplify right side
    559,090.19x = 244,694,842,271.66
  5. Step 5: Solve for x
    x = 244,694,842,271.66/559,090.19
  6. Step 6: Final answer
    x = 437,666.13

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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.