Home / 619,120.77-854,024.67-389,314.35

Finding the Fourth Proportional to 619,120.77, 854,024.67 and 389,314.35

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Solution

The fourth proportional to 619,120.77, 854,024.67 and 389,314.35 is: 537,026.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,120.77 : 854,024.67 = 389,314.35 : x
  2. Step 2: Convert to fraction form
    619,120.77/854,024.67 = 389,314.35/x
  3. Step 3: Cross multiply
    619,120.77x = 854,024.67 × 389,314.35
  4. Step 4: Simplify right side
    619,120.77x = 332,484,059,285.02
  5. Step 5: Solve for x
    x = 332,484,059,285.02/619,120.77
  6. Step 6: Final answer
    x = 537,026.18

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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.