Home / 686,539.20-1,029,808.80-434,596.80

Finding the Fourth Proportional to 686,539.20, 1,029,808.80 and 434,596.80

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Solution

The fourth proportional to 686,539.20, 1,029,808.80 and 434,596.80 is: 651,895.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,539.20 : 1,029,808.80 = 434,596.80 : x
  2. Step 2: Convert to fraction form
    686,539.20/1,029,808.80 = 434,596.80/x
  3. Step 3: Cross multiply
    686,539.20x = 1,029,808.80 × 434,596.80
  4. Step 4: Simplify right side
    686,539.20x = 447,551,609,091.84
  5. Step 5: Solve for x
    x = 447,551,609,091.84/686,539.20
  6. Step 6: Final answer
    x = 651,895.20

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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.