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Finding the Fourth Proportional to 472,299.69, 651,315.69 and 299,913.60

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Solution

The fourth proportional to 472,299.69, 651,315.69 and 299,913.60 is: 413,590.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,299.69 : 651,315.69 = 299,913.60 : x
  2. Step 2: Convert to fraction form
    472,299.69/651,315.69 = 299,913.60/x
  3. Step 3: Cross multiply
    472,299.69x = 651,315.69 × 299,913.60
  4. Step 4: Simplify right side
    472,299.69x = 195,338,433,324.38
  5. Step 5: Solve for x
    x = 195,338,433,324.38/472,299.69
  6. Step 6: Final answer
    x = 413,590.01

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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.