Home / 484,919.40-669,368.34-416,663.40

Finding the Fourth Proportional to 484,919.40, 669,368.34 and 416,663.40

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Solution

The fourth proportional to 484,919.40, 669,368.34 and 416,663.40 is: 575,149.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,919.40 : 669,368.34 = 416,663.40 : x
  2. Step 2: Convert to fraction form
    484,919.40/669,368.34 = 416,663.40/x
  3. Step 3: Cross multiply
    484,919.40x = 669,368.34 × 416,663.40
  4. Step 4: Simplify right side
    484,919.40x = 278,901,288,396.76
  5. Step 5: Solve for x
    x = 278,901,288,396.76/484,919.40
  6. Step 6: Final answer
    x = 575,149.78

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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.