Home / 865,648,420.32-1,295,407,509.84-538,278,094.56

Finding the Fourth Proportional to 865,648,420.32, 1,295,407,509.84 and 538,278,094.56

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Solution

The fourth proportional to 865,648,420.32, 1,295,407,509.84 and 538,278,094.56 is: 805,511,186.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,648,420.32 : 1,295,407,509.84 = 538,278,094.56 : x
  2. Step 2: Convert to fraction form
    865,648,420.32/1,295,407,509.84 = 538,278,094.56/x
  3. Step 3: Cross multiply
    865,648,420.32x = 1,295,407,509.84 × 538,278,094.56
  4. Step 4: Simplify right side
    865,648,420.32x = 697,289,486,075,389,568
  5. Step 5: Solve for x
    x = 697,289,486,075,389,568/865,648,420.32
  6. Step 6: Final answer
    x = 805,511,186.42

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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.