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Finding the Fourth Proportional to 577,316.59, 866,115.72 and 406,870.63

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Solution

The fourth proportional to 577,316.59, 866,115.72 and 406,870.63 is: 610,405.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,316.59 : 866,115.72 = 406,870.63 : x
  2. Step 2: Convert to fraction form
    577,316.59/866,115.72 = 406,870.63/x
  3. Step 3: Cross multiply
    577,316.59x = 866,115.72 × 406,870.63
  4. Step 4: Simplify right side
    577,316.59x = 352,397,046,484.01
  5. Step 5: Solve for x
    x = 352,397,046,484.01/577,316.59
  6. Step 6: Final answer
    x = 610,405.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.