Home / 977,686.20-1,349,396.10-637,563.96

Finding the Fourth Proportional to 977,686.20, 1,349,396.10 and 637,563.96

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Solution

The fourth proportional to 977,686.20, 1,349,396.10 and 637,563.96 is: 879,961.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,686.20 : 1,349,396.10 = 637,563.96 : x
  2. Step 2: Convert to fraction form
    977,686.20/1,349,396.10 = 637,563.96/x
  3. Step 3: Cross multiply
    977,686.20x = 1,349,396.10 × 637,563.96
  4. Step 4: Simplify right side
    977,686.20x = 860,326,321,124.56
  5. Step 5: Solve for x
    x = 860,326,321,124.56/977,686.20
  6. Step 6: Final answer
    x = 879,961.61

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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.