Home / 514,404.09-709,869.84-288,057.69

Finding the Fourth Proportional to 514,404.09, 709,869.84 and 288,057.69

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Solution

The fourth proportional to 514,404.09, 709,869.84 and 288,057.69 is: 397,515.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,404.09 : 709,869.84 = 288,057.69 : x
  2. Step 2: Convert to fraction form
    514,404.09/709,869.84 = 288,057.69/x
  3. Step 3: Cross multiply
    514,404.09x = 709,869.84 × 288,057.69
  4. Step 4: Simplify right side
    514,404.09x = 204,483,466,311.07
  5. Step 5: Solve for x
    x = 204,483,466,311.07/514,404.09
  6. Step 6: Final answer
    x = 397,515.24

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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.