Home / 930,954,288.88-1,285,943,250.99-690,038,653.84

Finding the Fourth Proportional to 930,954,288.88, 1,285,943,250.99 and 690,038,653.84

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Solution

The fourth proportional to 930,954,288.88, 1,285,943,250.99 and 690,038,653.84 is: 953,162,320.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,954,288.88 : 1,285,943,250.99 = 690,038,653.84 : x
  2. Step 2: Convert to fraction form
    930,954,288.88/1,285,943,250.99 = 690,038,653.84/x
  3. Step 3: Cross multiply
    930,954,288.88x = 1,285,943,250.99 × 690,038,653.84
  4. Step 4: Simplify right side
    930,954,288.88x = 887,350,549,827,772,928
  5. Step 5: Solve for x
    x = 887,350,549,827,772,928/930,954,288.88
  6. Step 6: Final answer
    x = 953,162,320.03

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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.