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Finding the Fourth Proportional to 570,413.33, 787,170.56 and 315,764.52

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Solution

The fourth proportional to 570,413.33, 787,170.56 and 315,764.52 is: 435,755.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,413.33 : 787,170.56 = 315,764.52 : x
  2. Step 2: Convert to fraction form
    570,413.33/787,170.56 = 315,764.52/x
  3. Step 3: Cross multiply
    570,413.33x = 787,170.56 × 315,764.52
  4. Step 4: Simplify right side
    570,413.33x = 248,560,534,036.53
  5. Step 5: Solve for x
    x = 248,560,534,036.53/570,413.33
  6. Step 6: Final answer
    x = 435,755.13

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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.