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Finding the Fourth Proportional to 283,365.53, 391,035.89 and 156,041.81

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Solution

The fourth proportional to 283,365.53, 391,035.89 and 156,041.81 is: 215,332.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,365.53 : 391,035.89 = 156,041.81 : x
  2. Step 2: Convert to fraction form
    283,365.53/391,035.89 = 156,041.81/x
  3. Step 3: Cross multiply
    283,365.53x = 391,035.89 × 156,041.81
  4. Step 4: Simplify right side
    283,365.53x = 61,017,947,270.35
  5. Step 5: Solve for x
    x = 61,017,947,270.35/283,365.53
  6. Step 6: Final answer
    x = 215,332.99

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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.