Home / 717,858.23-990,644.45-416,227.19

Finding the Fourth Proportional to 717,858.23, 990,644.45 and 416,227.19

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Solution

The fourth proportional to 717,858.23, 990,644.45 and 416,227.19 is: 574,393.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,858.23 : 990,644.45 = 416,227.19 : x
  2. Step 2: Convert to fraction form
    717,858.23/990,644.45 = 416,227.19/x
  3. Step 3: Cross multiply
    717,858.23x = 990,644.45 × 416,227.19
  4. Step 4: Simplify right side
    717,858.23x = 412,333,153,631.46
  5. Step 5: Solve for x
    x = 412,333,153,631.46/717,858.23
  6. Step 6: Final answer
    x = 574,393.57

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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.