Home / 957,720,355.40-1,321,653,505.86-517,687,207.40

Finding the Fourth Proportional to 957,720,355.40, 1,321,653,505.86 and 517,687,207.40

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Solution

The fourth proportional to 957,720,355.40, 1,321,653,505.86 and 517,687,207.40 is: 714,408,030.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,720,355.40 : 1,321,653,505.86 = 517,687,207.40 : x
  2. Step 2: Convert to fraction form
    957,720,355.40/1,321,653,505.86 = 517,687,207.40/x
  3. Step 3: Cross multiply
    957,720,355.40x = 1,321,653,505.86 × 517,687,207.40
  4. Step 4: Simplify right side
    957,720,355.40x = 684,203,112,592,474,624
  5. Step 5: Solve for x
    x = 684,203,112,592,474,624/957,720,355.40
  6. Step 6: Final answer
    x = 714,408,030.21

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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.