Home / 657,146.46-906,889.59-415,341.21

Finding the Fourth Proportional to 657,146.46, 906,889.59 and 415,341.21

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Solution

The fourth proportional to 657,146.46, 906,889.59 and 415,341.21 is: 573,188.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,146.46 : 906,889.59 = 415,341.21 : x
  2. Step 2: Convert to fraction form
    657,146.46/906,889.59 = 415,341.21/x
  3. Step 3: Cross multiply
    657,146.46x = 906,889.59 × 415,341.21
  4. Step 4: Simplify right side
    657,146.46x = 376,668,619,647.00
  5. Step 5: Solve for x
    x = 376,668,619,647.00/657,146.46
  6. Step 6: Final answer
    x = 573,188.24

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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.