Home / 716,563.40-1,074,585.90-289,920.20

Finding the Fourth Proportional to 716,563.40, 1,074,585.90 and 289,920.20

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Solution

The fourth proportional to 716,563.40, 1,074,585.90 and 289,920.20 is: 434,775.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,563.40 : 1,074,585.90 = 289,920.20 : x
  2. Step 2: Convert to fraction form
    716,563.40/1,074,585.90 = 289,920.20/x
  3. Step 3: Cross multiply
    716,563.40x = 1,074,585.90 × 289,920.20
  4. Step 4: Simplify right side
    716,563.40x = 311,544,159,045.18
  5. Step 5: Solve for x
    x = 311,544,159,045.18/716,563.40
  6. Step 6: Final answer
    x = 434,775.43

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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.