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Finding the Fourth Proportional to 567,303.92, 783,138.12 and 404,065.52

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Solution

The fourth proportional to 567,303.92, 783,138.12 and 404,065.52 is: 557,794.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,303.92 : 783,138.12 = 404,065.52 : x
  2. Step 2: Convert to fraction form
    567,303.92/783,138.12 = 404,065.52/x
  3. Step 3: Cross multiply
    567,303.92x = 783,138.12 × 404,065.52
  4. Step 4: Simplify right side
    567,303.92x = 316,439,111,689.62
  5. Step 5: Solve for x
    x = 316,439,111,689.62/567,303.92
  6. Step 6: Final answer
    x = 557,794.69

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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.