Home / 651,888,799.20-977,833,198.80-445,264,538.40

Finding the Fourth Proportional to 651,888,799.20, 977,833,198.80 and 445,264,538.40

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Solution

The fourth proportional to 651,888,799.20, 977,833,198.80 and 445,264,538.40 is: 667,896,807.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,888,799.20 : 977,833,198.80 = 445,264,538.40 : x
  2. Step 2: Convert to fraction form
    651,888,799.20/977,833,198.80 = 445,264,538.40/x
  3. Step 3: Cross multiply
    651,888,799.20x = 977,833,198.80 × 445,264,538.40
  4. Step 4: Simplify right side
    651,888,799.20x = 435,394,447,895,877,376
  5. Step 5: Solve for x
    x = 435,394,447,895,877,376/651,888,799.20
  6. Step 6: Final answer
    x = 667,896,807.60

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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.