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Finding the Fourth Proportional to 575,783.40, 863,808.01 and 170,966.61

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Solution

The fourth proportional to 575,783.40, 863,808.01 and 170,966.61 is: 256,489.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,783.40 : 863,808.01 = 170,966.61 : x
  2. Step 2: Convert to fraction form
    575,783.40/863,808.01 = 170,966.61/x
  3. Step 3: Cross multiply
    575,783.40x = 863,808.01 × 170,966.61
  4. Step 4: Simplify right side
    575,783.40x = 147,682,323,602.81
  5. Step 5: Solve for x
    x = 147,682,323,602.81/575,783.40
  6. Step 6: Final answer
    x = 256,489.38

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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.