Home / 860,191.40-1,289,849.70-505,314.20

Finding the Fourth Proportional to 860,191.40, 1,289,849.70 and 505,314.20

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Solution

The fourth proportional to 860,191.40, 1,289,849.70 and 505,314.20 is: 757,714.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,191.40 : 1,289,849.70 = 505,314.20 : x
  2. Step 2: Convert to fraction form
    860,191.40/1,289,849.70 = 505,314.20/x
  3. Step 3: Cross multiply
    860,191.40x = 1,289,849.70 × 505,314.20
  4. Step 4: Simplify right side
    860,191.40x = 651,779,369,275.74
  5. Step 5: Solve for x
    x = 651,779,369,275.74/860,191.40
  6. Step 6: Final answer
    x = 757,714.35

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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.