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Finding the Fourth Proportional to 545,051.46, 752,206.38 and 303,333.32

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Solution

The fourth proportional to 545,051.46, 752,206.38 and 303,333.32 is: 418,619.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,051.46 : 752,206.38 = 303,333.32 : x
  2. Step 2: Convert to fraction form
    545,051.46/752,206.38 = 303,333.32/x
  3. Step 3: Cross multiply
    545,051.46x = 752,206.38 × 303,333.32
  4. Step 4: Simplify right side
    545,051.46x = 228,169,258,570.58
  5. Step 5: Solve for x
    x = 228,169,258,570.58/545,051.46
  6. Step 6: Final answer
    x = 418,619.66

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Double scale
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Similar ratio
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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.