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Finding the Fourth Proportional to 620,064,812.40, 930,097,218.60 and 413,440,551.60

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Solution

The fourth proportional to 620,064,812.40, 930,097,218.60 and 413,440,551.60 is: 620,160,827.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,064,812.40 : 930,097,218.60 = 413,440,551.60 : x
  2. Step 2: Convert to fraction form
    620,064,812.40/930,097,218.60 = 413,440,551.60/x
  3. Step 3: Cross multiply
    620,064,812.40x = 930,097,218.60 × 413,440,551.60
  4. Step 4: Simplify right side
    620,064,812.40x = 384,539,907,099,609,792
  5. Step 5: Solve for x
    x = 384,539,907,099,609,792/620,064,812.40
  6. Step 6: Final answer
    x = 620,160,827.40

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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.