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Finding the Fourth Proportional to 586,052.84, 879,079.26 and 386,326.52

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Solution

The fourth proportional to 586,052.84, 879,079.26 and 386,326.52 is: 579,489.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,052.84 : 879,079.26 = 386,326.52 : x
  2. Step 2: Convert to fraction form
    586,052.84/879,079.26 = 386,326.52/x
  3. Step 3: Cross multiply
    586,052.84x = 879,079.26 × 386,326.52
  4. Step 4: Simplify right side
    586,052.84x = 339,611,631,319.98
  5. Step 5: Solve for x
    x = 339,611,631,319.98/586,052.84
  6. Step 6: Final answer
    x = 579,489.78

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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.