Home / 616,890.90-851,311.71-358,829.76

Finding the Fourth Proportional to 616,890.90, 851,311.71 and 358,829.76

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Solution

The fourth proportional to 616,890.90, 851,311.71 and 358,829.76 is: 495,186.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,890.90 : 851,311.71 = 358,829.76 : x
  2. Step 2: Convert to fraction form
    616,890.90/851,311.71 = 358,829.76/x
  3. Step 3: Cross multiply
    616,890.90x = 851,311.71 × 358,829.76
  4. Step 4: Simplify right side
    616,890.90x = 305,475,976,584.49
  5. Step 5: Solve for x
    x = 305,475,976,584.49/616,890.90
  6. Step 6: Final answer
    x = 495,186.39

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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.