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Finding the Fourth Proportional to 453,886.80, 680,830.20 and 359,883.60

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Solution

The fourth proportional to 453,886.80, 680,830.20 and 359,883.60 is: 539,825.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,886.80 : 680,830.20 = 359,883.60 : x
  2. Step 2: Convert to fraction form
    453,886.80/680,830.20 = 359,883.60/x
  3. Step 3: Cross multiply
    453,886.80x = 680,830.20 × 359,883.60
  4. Step 4: Simplify right side
    453,886.80x = 245,019,623,364.72
  5. Step 5: Solve for x
    x = 245,019,623,364.72/453,886.80
  6. Step 6: Final answer
    x = 539,825.40

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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.