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Finding the Fourth Proportional to 355,358.91, 535,435.92 and 293,563.40

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Solution

The fourth proportional to 355,358.91, 535,435.92 and 293,563.40 is: 442,325.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,358.91 : 535,435.92 = 293,563.40 : x
  2. Step 2: Convert to fraction form
    355,358.91/535,435.92 = 293,563.40/x
  3. Step 3: Cross multiply
    355,358.91x = 535,435.92 × 293,563.40
  4. Step 4: Simplify right side
    355,358.91x = 157,184,387,689.51
  5. Step 5: Solve for x
    x = 157,184,387,689.51/355,358.91
  6. Step 6: Final answer
    x = 442,325.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.