Home / 871,776,578.21-1,203,051,332.49-475,299,891.70

Finding the Fourth Proportional to 871,776,578.21, 1,203,051,332.49 and 475,299,891.70

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Solution

The fourth proportional to 871,776,578.21, 1,203,051,332.49 and 475,299,891.70 is: 655,913,662.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,776,578.21 : 1,203,051,332.49 = 475,299,891.70 : x
  2. Step 2: Convert to fraction form
    871,776,578.21/1,203,051,332.49 = 475,299,891.70/x
  3. Step 3: Cross multiply
    871,776,578.21x = 1,203,051,332.49 × 475,299,891.70
  4. Step 4: Simplify right side
    871,776,578.21x = 571,810,168,037,271,424
  5. Step 5: Solve for x
    x = 571,810,168,037,271,424/871,776,578.21
  6. Step 6: Final answer
    x = 655,913,662.21

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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.