Home / 651,100,419.60-976,650,629.40-528,656,413.20

Finding the Fourth Proportional to 651,100,419.60, 976,650,629.40 and 528,656,413.20

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Solution

The fourth proportional to 651,100,419.60, 976,650,629.40 and 528,656,413.20 is: 792,984,619.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,100,419.60 : 976,650,629.40 = 528,656,413.20 : x
  2. Step 2: Convert to fraction form
    651,100,419.60/976,650,629.40 = 528,656,413.20/x
  3. Step 3: Cross multiply
    651,100,419.60x = 976,650,629.40 × 528,656,413.20
  4. Step 4: Simplify right side
    651,100,419.60x = 516,312,618,688,126,464
  5. Step 5: Solve for x
    x = 516,312,618,688,126,464/651,100,419.60
  6. Step 6: Final answer
    x = 792,984,619.80

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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.