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Finding the Fourth Proportional to 366,303.60, 549,552.60 and 129,621.60

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Solution

The fourth proportional to 366,303.60, 549,552.60 and 129,621.60 is: 194,466.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,303.60 : 549,552.60 = 129,621.60 : x
  2. Step 2: Convert to fraction form
    366,303.60/549,552.60 = 129,621.60/x
  3. Step 3: Cross multiply
    366,303.60x = 549,552.60 × 129,621.60
  4. Step 4: Simplify right side
    366,303.60x = 71,233,887,296.16
  5. Step 5: Solve for x
    x = 71,233,887,296.16/366,303.60
  6. Step 6: Final answer
    x = 194,466.80

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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.