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Finding the Fourth Proportional to 530,133.87, 731,574.66 and 294,379.84

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Solution

The fourth proportional to 530,133.87, 731,574.66 and 294,379.84 is: 406,238.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,133.87 : 731,574.66 = 294,379.84 : x
  2. Step 2: Convert to fraction form
    530,133.87/731,574.66 = 294,379.84/x
  3. Step 3: Cross multiply
    530,133.87x = 731,574.66 × 294,379.84
  4. Step 4: Simplify right side
    530,133.87x = 215,360,831,358.85
  5. Step 5: Solve for x
    x = 215,360,831,358.85/530,133.87
  6. Step 6: Final answer
    x = 406,238.58

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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.