Home / 901,336.80-1,243,658.16-686,097.12

Finding the Fourth Proportional to 901,336.80, 1,243,658.16 and 686,097.12

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Solution

The fourth proportional to 901,336.80, 1,243,658.16 and 686,097.12 is: 946,671.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,336.80 : 1,243,658.16 = 686,097.12 : x
  2. Step 2: Convert to fraction form
    901,336.80/1,243,658.16 = 686,097.12/x
  3. Step 3: Cross multiply
    901,336.80x = 1,243,658.16 × 686,097.12
  4. Step 4: Simplify right side
    901,336.80x = 853,270,281,840.50
  5. Step 5: Solve for x
    x = 853,270,281,840.50/901,336.80
  6. Step 6: Final answer
    x = 946,671.97

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Double scale
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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.