Home / 898,128,019.80-1,347,192,029.70-414,398,611.80

Finding the Fourth Proportional to 898,128,019.80, 1,347,192,029.70 and 414,398,611.80

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Solution

The fourth proportional to 898,128,019.80, 1,347,192,029.70 and 414,398,611.80 is: 621,597,917.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,128,019.80 : 1,347,192,029.70 = 414,398,611.80 : x
  2. Step 2: Convert to fraction form
    898,128,019.80/1,347,192,029.70 = 414,398,611.80/x
  3. Step 3: Cross multiply
    898,128,019.80x = 1,347,192,029.70 × 414,398,611.80
  4. Step 4: Simplify right side
    898,128,019.80x = 558,274,506,935,704,384
  5. Step 5: Solve for x
    x = 558,274,506,935,704,384/898,128,019.80
  6. Step 6: Final answer
    x = 621,597,917.70

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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.