Home / 945,680,204.35-1,305,041,212.71-528,007,435.21

Finding the Fourth Proportional to 945,680,204.35, 1,305,041,212.71 and 528,007,435.21

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Solution

The fourth proportional to 945,680,204.35, 1,305,041,212.71 and 528,007,435.21 is: 728,651,673.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,680,204.35 : 1,305,041,212.71 = 528,007,435.21 : x
  2. Step 2: Convert to fraction form
    945,680,204.35/1,305,041,212.71 = 528,007,435.21/x
  3. Step 3: Cross multiply
    945,680,204.35x = 1,305,041,212.71 × 528,007,435.21
  4. Step 4: Simplify right side
    945,680,204.35x = 689,071,463,563,092,608
  5. Step 5: Solve for x
    x = 689,071,463,563,092,608/945,680,204.35
  6. Step 6: Final answer
    x = 728,651,673.57

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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.