Home / 678,433,986.30-1,017,650,979.45-609,559,232.70

Finding the Fourth Proportional to 678,433,986.30, 1,017,650,979.45 and 609,559,232.70

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Solution

The fourth proportional to 678,433,986.30, 1,017,650,979.45 and 609,559,232.70 is: 914,338,849.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,433,986.30 : 1,017,650,979.45 = 609,559,232.70 : x
  2. Step 2: Convert to fraction form
    678,433,986.30/1,017,650,979.45 = 609,559,232.70/x
  3. Step 3: Cross multiply
    678,433,986.30x = 1,017,650,979.45 × 609,559,232.70
  4. Step 4: Simplify right side
    678,433,986.30x = 620,318,550,189,945,600
  5. Step 5: Solve for x
    x = 620,318,550,189,945,600/678,433,986.30
  6. Step 6: Final answer
    x = 914,338,849.05

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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.