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Finding the Fourth Proportional to 1,351,873.06, 1,865,586.48 and 842,575

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Solution

The fourth proportional to 1,351,873.06, 1,865,586.48 and 842,575 is: 1,162,754.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351,873.06 : 1,865,586.48 = 842,575 : x
  2. Step 2: Convert to fraction form
    1,351,873.06/1,865,586.48 = 842,575/x
  3. Step 3: Cross multiply
    1,351,873.06x = 1,865,586.48 × 842,575
  4. Step 4: Simplify right side
    1,351,873.06x = 1,571,896,528,386
  5. Step 5: Solve for x
    x = 1,571,896,528,386/1,351,873.06
  6. Step 6: Final answer
    x = 1,162,754.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.