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Finding the Fourth Proportional to 561,685.86, 842,530.01 and 162,358.83

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Solution

The fourth proportional to 561,685.86, 842,530.01 and 162,358.83 is: 243,538.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,685.86 : 842,530.01 = 162,358.83 : x
  2. Step 2: Convert to fraction form
    561,685.86/842,530.01 = 162,358.83/x
  3. Step 3: Cross multiply
    561,685.86x = 842,530.01 × 162,358.83
  4. Step 4: Simplify right side
    561,685.86x = 136,792,185,851.69
  5. Step 5: Solve for x
    x = 136,792,185,851.69/561,685.86
  6. Step 6: Final answer
    x = 243,538.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.