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Finding the Fourth Proportional to 369,538.80, 554,308.20 and 366,039.60

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Solution

The fourth proportional to 369,538.80, 554,308.20 and 366,039.60 is: 549,059.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,538.80 : 554,308.20 = 366,039.60 : x
  2. Step 2: Convert to fraction form
    369,538.80/554,308.20 = 366,039.60/x
  3. Step 3: Cross multiply
    369,538.80x = 554,308.20 × 366,039.60
  4. Step 4: Simplify right side
    369,538.80x = 202,898,751,804.72
  5. Step 5: Solve for x
    x = 202,898,751,804.72/369,538.80
  6. Step 6: Final answer
    x = 549,059.40

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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.