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Finding the Fourth Proportional to 492,316.80, 738,475.20 and 176,805.60

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Solution

The fourth proportional to 492,316.80, 738,475.20 and 176,805.60 is: 265,208.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,316.80 : 738,475.20 = 176,805.60 : x
  2. Step 2: Convert to fraction form
    492,316.80/738,475.20 = 176,805.60/x
  3. Step 3: Cross multiply
    492,316.80x = 738,475.20 × 176,805.60
  4. Step 4: Simplify right side
    492,316.80x = 130,566,550,821.12
  5. Step 5: Solve for x
    x = 130,566,550,821.12/492,316.80
  6. Step 6: Final answer
    x = 265,208.40

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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.