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Finding the Fourth Proportional to 577,729.73, 866,799.73 and 257,852.50

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Solution

The fourth proportional to 577,729.73, 866,799.73 and 257,852.50 is: 386,870.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,729.73 : 866,799.73 = 257,852.50 : x
  2. Step 2: Convert to fraction form
    577,729.73/866,799.73 = 257,852.50/x
  3. Step 3: Cross multiply
    577,729.73x = 866,799.73 × 257,852.50
  4. Step 4: Simplify right side
    577,729.73x = 223,506,475,535.14
  5. Step 5: Solve for x
    x = 223,506,475,535.14/577,729.73
  6. Step 6: Final answer
    x = 386,870.30

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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.