Home / 472,392,672.40-708,589,008.60-265,768,411.60

Finding the Fourth Proportional to 472,392,672.40, 708,589,008.60 and 265,768,411.60

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Solution

The fourth proportional to 472,392,672.40, 708,589,008.60 and 265,768,411.60 is: 398,652,617.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,672.40 : 708,589,008.60 = 265,768,411.60 : x
  2. Step 2: Convert to fraction form
    472,392,672.40/708,589,008.60 = 265,768,411.60/x
  3. Step 3: Cross multiply
    472,392,672.40x = 708,589,008.60 × 265,768,411.60
  4. Step 4: Simplify right side
    472,392,672.40x = 188,320,575,292,840,736
  5. Step 5: Solve for x
    x = 188,320,575,292,840,736/472,392,672.40
  6. Step 6: Final answer
    x = 398,652,617.40

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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.