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Finding the Fourth Proportional to 315,373.90, 473,697.54 and 189,253.66

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Solution

The fourth proportional to 315,373.90, 473,697.54 and 189,253.66 is: 284,262.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,373.90 : 473,697.54 = 189,253.66 : x
  2. Step 2: Convert to fraction form
    315,373.90/473,697.54 = 189,253.66/x
  3. Step 3: Cross multiply
    315,373.90x = 473,697.54 × 189,253.66
  4. Step 4: Simplify right side
    315,373.90x = 89,648,993,178.00
  5. Step 5: Solve for x
    x = 89,648,993,178.00/315,373.90
  6. Step 6: Final answer
    x = 284,262.56

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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.