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Finding the Fourth Proportional to 366,923.20, 549,728.70 and 310,498.60

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Solution

The fourth proportional to 366,923.20, 549,728.70 and 310,498.60 is: 465,192.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,923.20 : 549,728.70 = 310,498.60 : x
  2. Step 2: Convert to fraction form
    366,923.20/549,728.70 = 310,498.60/x
  3. Step 3: Cross multiply
    366,923.20x = 549,728.70 × 310,498.60
  4. Step 4: Simplify right side
    366,923.20x = 170,689,991,729.82
  5. Step 5: Solve for x
    x = 170,689,991,729.82/366,923.20
  6. Step 6: Final answer
    x = 465,192.69

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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.