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Finding the Fourth Proportional to 712,597.19, 983,110.52 and 406,690.56

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Solution

The fourth proportional to 712,597.19, 983,110.52 and 406,690.56 is: 561,076.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,597.19 : 983,110.52 = 406,690.56 : x
  2. Step 2: Convert to fraction form
    712,597.19/983,110.52 = 406,690.56/x
  3. Step 3: Cross multiply
    712,597.19x = 983,110.52 × 406,690.56
  4. Step 4: Simplify right side
    712,597.19x = 399,821,765,887.24
  5. Step 5: Solve for x
    x = 399,821,765,887.24/712,597.19
  6. Step 6: Final answer
    x = 561,076.82

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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.