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Finding the Fourth Proportional to 415,973.40, 623,960.10 and 366,984.60

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Solution

The fourth proportional to 415,973.40, 623,960.10 and 366,984.60 is: 550,476.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,973.40 : 623,960.10 = 366,984.60 : x
  2. Step 2: Convert to fraction form
    415,973.40/623,960.10 = 366,984.60/x
  3. Step 3: Cross multiply
    415,973.40x = 623,960.10 × 366,984.60
  4. Step 4: Simplify right side
    415,973.40x = 228,983,747,714.46
  5. Step 5: Solve for x
    x = 228,983,747,714.46/415,973.40
  6. Step 6: Final answer
    x = 550,476.90

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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.