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Finding the Fourth Proportional to 577,369,685.70, 866,054,528.55 and 543,357,461.70

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Solution

The fourth proportional to 577,369,685.70, 866,054,528.55 and 543,357,461.70 is: 815,036,192.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,369,685.70 : 866,054,528.55 = 543,357,461.70 : x
  2. Step 2: Convert to fraction form
    577,369,685.70/866,054,528.55 = 543,357,461.70/x
  3. Step 3: Cross multiply
    577,369,685.70x = 866,054,528.55 × 543,357,461.70
  4. Step 4: Simplify right side
    577,369,685.70x = 470,577,190,326,718,208
  5. Step 5: Solve for x
    x = 470,577,190,326,718,208/577,369,685.70
  6. Step 6: Final answer
    x = 815,036,192.55

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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.