Home / 641,145,657.60-961,718,486.40-605,432,822.40

Finding the Fourth Proportional to 641,145,657.60, 961,718,486.40 and 605,432,822.40

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Solution

The fourth proportional to 641,145,657.60, 961,718,486.40 and 605,432,822.40 is: 908,149,233.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,145,657.60 : 961,718,486.40 = 605,432,822.40 : x
  2. Step 2: Convert to fraction form
    641,145,657.60/961,718,486.40 = 605,432,822.40/x
  3. Step 3: Cross multiply
    641,145,657.60x = 961,718,486.40 × 605,432,822.40
  4. Step 4: Simplify right side
    641,145,657.60x = 582,255,937,575,408,000
  5. Step 5: Solve for x
    x = 582,255,937,575,408,000/641,145,657.60
  6. Step 6: Final answer
    x = 908,149,233.60

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Double scale
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Similar ratio
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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.