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Finding the Fourth Proportional to 492,479.60, 738,719.40 and 176,946.80

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Solution

The fourth proportional to 492,479.60, 738,719.40 and 176,946.80 is: 265,420.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,479.60 : 738,719.40 = 176,946.80 : x
  2. Step 2: Convert to fraction form
    492,479.60/738,719.40 = 176,946.80/x
  3. Step 3: Cross multiply
    492,479.60x = 738,719.40 × 176,946.80
  4. Step 4: Simplify right side
    492,479.60x = 130,714,033,927.92
  5. Step 5: Solve for x
    x = 130,714,033,927.92/492,479.60
  6. Step 6: Final answer
    x = 265,420.20

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1.5x scale

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.