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Finding the Fourth Proportional to 434,173,838.60, 609,455,805.40 and 434,173,838.60

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Solution

The fourth proportional to 434,173,838.60, 609,455,805.40 and 434,173,838.60 is: 609,455,805.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,173,838.60 : 609,455,805.40 = 434,173,838.60 : x
  2. Step 2: Convert to fraction form
    434,173,838.60/609,455,805.40 = 434,173,838.60/x
  3. Step 3: Cross multiply
    434,173,838.60x = 609,455,805.40 × 434,173,838.60
  4. Step 4: Simplify right side
    434,173,838.60x = 264,609,766,487,572,608
  5. Step 5: Solve for x
    x = 264,609,766,487,572,608/434,173,838.60
  6. Step 6: Final answer
    x = 609,455,805.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.