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Finding the Fourth Proportional to 395,347.80, 592,875.90 and 170,718.60

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Solution

The fourth proportional to 395,347.80, 592,875.90 and 170,718.60 is: 256,014.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,347.80 : 592,875.90 = 170,718.60 : x
  2. Step 2: Convert to fraction form
    395,347.80/592,875.90 = 170,718.60/x
  3. Step 3: Cross multiply
    395,347.80x = 592,875.90 × 170,718.60
  4. Step 4: Simplify right side
    395,347.80x = 101,214,943,621.74
  5. Step 5: Solve for x
    x = 101,214,943,621.74/395,347.80
  6. Step 6: Final answer
    x = 256,014.94

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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.