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Finding the Fourth Proportional to 373,248,403.60, 559,872,605.40 and 280,533,600.40

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Solution

The fourth proportional to 373,248,403.60, 559,872,605.40 and 280,533,600.40 is: 420,800,400.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,248,403.60 : 559,872,605.40 = 280,533,600.40 : x
  2. Step 2: Convert to fraction form
    373,248,403.60/559,872,605.40 = 280,533,600.40/x
  3. Step 3: Cross multiply
    373,248,403.60x = 559,872,605.40 × 280,533,600.40
  4. Step 4: Simplify right side
    373,248,403.60x = 157,063,077,758,190,464
  5. Step 5: Solve for x
    x = 157,063,077,758,190,464/373,248,403.60
  6. Step 6: Final answer
    x = 420,800,400.60

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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.