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Finding the Fourth Proportional to 653,528.80, 980,353.62 and 254,199.88

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Solution

The fourth proportional to 653,528.80, 980,353.62 and 254,199.88 is: 381,323.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,528.80 : 980,353.62 = 254,199.88 : x
  2. Step 2: Convert to fraction form
    653,528.80/980,353.62 = 254,199.88/x
  3. Step 3: Cross multiply
    653,528.80x = 980,353.62 × 254,199.88
  4. Step 4: Simplify right side
    653,528.80x = 249,205,772,561.57
  5. Step 5: Solve for x
    x = 249,205,772,561.57/653,528.80
  6. Step 6: Final answer
    x = 381,323.32

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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.