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Finding the Fourth Proportional to 875,556, 1,311,634.62 and 575,124.98

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Solution

The fourth proportional to 875,556, 1,311,634.62 and 575,124.98 is: 861,571.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,556 : 1,311,634.62 = 575,124.98 : x
  2. Step 2: Convert to fraction form
    875,556/1,311,634.62 = 575,124.98/x
  3. Step 3: Cross multiply
    875,556x = 1,311,634.62 × 575,124.98
  4. Step 4: Simplify right side
    875,556x = 754,353,828,036.64
  5. Step 5: Solve for x
    x = 754,353,828,036.64/875,556
  6. Step 6: Final answer
    x = 861,571.19

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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.