Home / 472,345,622.40-708,518,433.60-418,597,910.40

Finding the Fourth Proportional to 472,345,622.40, 708,518,433.60 and 418,597,910.40

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Solution

The fourth proportional to 472,345,622.40, 708,518,433.60 and 418,597,910.40 is: 627,896,865.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,345,622.40 : 708,518,433.60 = 418,597,910.40 : x
  2. Step 2: Convert to fraction form
    472,345,622.40/708,518,433.60 = 418,597,910.40/x
  3. Step 3: Cross multiply
    472,345,622.40x = 708,518,433.60 × 418,597,910.40
  4. Step 4: Simplify right side
    472,345,622.40x = 296,584,335,784,841,152
  5. Step 5: Solve for x
    x = 296,584,335,784,841,152/472,345,622.40
  6. Step 6: Final answer
    x = 627,896,865.60

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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.