Home / 838,621,169.75-1,157,287,784.48-457,134,844.86

Finding the Fourth Proportional to 838,621,169.75, 1,157,287,784.48 and 457,134,844.86

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Solution

The fourth proportional to 838,621,169.75, 1,157,287,784.48 and 457,134,844.86 is: 630,840,945.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,621,169.75 : 1,157,287,784.48 = 457,134,844.86 : x
  2. Step 2: Convert to fraction form
    838,621,169.75/1,157,287,784.48 = 457,134,844.86/x
  3. Step 3: Cross multiply
    838,621,169.75x = 1,157,287,784.48 × 457,134,844.86
  4. Step 4: Simplify right side
    838,621,169.75x = 529,036,571,816,043,648
  5. Step 5: Solve for x
    x = 529,036,571,816,043,648/838,621,169.75
  6. Step 6: Final answer
    x = 630,840,945.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.