Home / 905,314.50-1,358,070.12-336,628.89

Finding the Fourth Proportional to 905,314.50, 1,358,070.12 and 336,628.89

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Solution

The fourth proportional to 905,314.50, 1,358,070.12 and 336,628.89 is: 504,979.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,314.50 : 1,358,070.12 = 336,628.89 : x
  2. Step 2: Convert to fraction form
    905,314.50/1,358,070.12 = 336,628.89/x
  3. Step 3: Cross multiply
    905,314.50x = 1,358,070.12 × 336,628.89
  4. Step 4: Simplify right side
    905,314.50x = 457,165,637,037.77
  5. Step 5: Solve for x
    x = 457,165,637,037.77/905,314.50
  6. Step 6: Final answer
    x = 504,979.91

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.