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Finding the Fourth Proportional to 315,698.04, 473,617.26 and 91,041.12

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Solution

The fourth proportional to 315,698.04, 473,617.26 and 91,041.12 is: 136,581.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,698.04 : 473,617.26 = 91,041.12 : x
  2. Step 2: Convert to fraction form
    315,698.04/473,617.26 = 91,041.12/x
  3. Step 3: Cross multiply
    315,698.04x = 473,617.26 × 91,041.12
  4. Step 4: Simplify right side
    315,698.04x = 43,118,645,801.73
  5. Step 5: Solve for x
    x = 43,118,645,801.73/315,698.04
  6. Step 6: Final answer
    x = 136,581.92

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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.