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Finding the Fourth Proportional to 588,326.76, 811,446.10 and 407,341.64

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Solution

The fourth proportional to 588,326.76, 811,446.10 and 407,341.64 is: 561,823.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,326.76 : 811,446.10 = 407,341.64 : x
  2. Step 2: Convert to fraction form
    588,326.76/811,446.10 = 407,341.64/x
  3. Step 3: Cross multiply
    588,326.76x = 811,446.10 × 407,341.64
  4. Step 4: Simplify right side
    588,326.76x = 330,535,785,145.60
  5. Step 5: Solve for x
    x = 330,535,785,145.60/588,326.76
  6. Step 6: Final answer
    x = 561,823.48

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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.