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Finding the Fourth Proportional to 516,203.16, 710,712.54 and 440,447.64

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Solution

The fourth proportional to 516,203.16, 710,712.54 and 440,447.64 is: 606,411.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,203.16 : 710,712.54 = 440,447.64 : x
  2. Step 2: Convert to fraction form
    516,203.16/710,712.54 = 440,447.64/x
  3. Step 3: Cross multiply
    516,203.16x = 710,712.54 × 440,447.64
  4. Step 4: Simplify right side
    516,203.16x = 313,031,660,961.41
  5. Step 5: Solve for x
    x = 313,031,660,961.41/516,203.16
  6. Step 6: Final answer
    x = 606,411.75

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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.