Home / 651,948,413.80-977,969,859.90-392,605,205.80

Finding the Fourth Proportional to 651,948,413.80, 977,969,859.90 and 392,605,205.80

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Solution

The fourth proportional to 651,948,413.80, 977,969,859.90 and 392,605,205.80 is: 588,936,256.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,948,413.80 : 977,969,859.90 = 392,605,205.80 : x
  2. Step 2: Convert to fraction form
    651,948,413.80/977,969,859.90 = 392,605,205.80/x
  3. Step 3: Cross multiply
    651,948,413.80x = 977,969,859.90 × 392,605,205.80
  4. Step 4: Simplify right side
    651,948,413.80x = 383,956,058,112,236,672
  5. Step 5: Solve for x
    x = 383,956,058,112,236,672/651,948,413.80
  6. Step 6: Final answer
    x = 588,936,256.28

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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.