Home / 1,120,065.40-1,680,098.10-409,857.40

Finding the Fourth Proportional to 1,120,065.40, 1,680,098.10 and 409,857.40

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Solution

The fourth proportional to 1,120,065.40, 1,680,098.10 and 409,857.40 is: 614,786.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,065.40 : 1,680,098.10 = 409,857.40 : x
  2. Step 2: Convert to fraction form
    1,120,065.40/1,680,098.10 = 409,857.40/x
  3. Step 3: Cross multiply
    1,120,065.40x = 1,680,098.10 × 409,857.40
  4. Step 4: Simplify right side
    1,120,065.40x = 688,600,639,010.94
  5. Step 5: Solve for x
    x = 688,600,639,010.94/1,120,065.40
  6. Step 6: Final answer
    x = 614,786.10

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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.