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Finding the Fourth Proportional to 404,345.69, 557,995.47 and 223,068.90

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Solution

The fourth proportional to 404,345.69, 557,995.47 and 223,068.90 is: 307,834.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,345.69 : 557,995.47 = 223,068.90 : x
  2. Step 2: Convert to fraction form
    404,345.69/557,995.47 = 223,068.90/x
  3. Step 3: Cross multiply
    404,345.69x = 557,995.47 × 223,068.90
  4. Step 4: Simplify right side
    404,345.69x = 124,471,436,953.86
  5. Step 5: Solve for x
    x = 124,471,436,953.86/404,345.69
  6. Step 6: Final answer
    x = 307,834.21

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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.