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Finding the Fourth Proportional to 515,178.36, 710,124.98 and 406,104.96

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Solution

The fourth proportional to 515,178.36, 710,124.98 and 406,104.96 is: 559,777.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,178.36 : 710,124.98 = 406,104.96 : x
  2. Step 2: Convert to fraction form
    515,178.36/710,124.98 = 406,104.96/x
  3. Step 3: Cross multiply
    515,178.36x = 710,124.98 × 406,104.96
  4. Step 4: Simplify right side
    515,178.36x = 288,385,276,597.90
  5. Step 5: Solve for x
    x = 288,385,276,597.90/515,178.36
  6. Step 6: Final answer
    x = 559,777.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.