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Finding the Fourth Proportional to 433,984.80, 608,978.40 and 433,984.80

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Solution

The fourth proportional to 433,984.80, 608,978.40 and 433,984.80 is: 608,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,984.80 : 608,978.40 = 433,984.80 : x
  2. Step 2: Convert to fraction form
    433,984.80/608,978.40 = 433,984.80/x
  3. Step 3: Cross multiply
    433,984.80x = 608,978.40 × 433,984.80
  4. Step 4: Simplify right side
    433,984.80x = 264,287,369,128.32
  5. Step 5: Solve for x
    x = 264,287,369,128.32/433,984.80
  6. Step 6: Final answer
    x = 608,978.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.