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Finding the Fourth Proportional to 586,190.48, 879,284.36 and 385,056.20

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Solution

The fourth proportional to 586,190.48, 879,284.36 and 385,056.20 is: 577,583.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,190.48 : 879,284.36 = 385,056.20 : x
  2. Step 2: Convert to fraction form
    586,190.48/879,284.36 = 385,056.20/x
  3. Step 3: Cross multiply
    586,190.48x = 879,284.36 × 385,056.20
  4. Step 4: Simplify right side
    586,190.48x = 338,573,894,381.03
  5. Step 5: Solve for x
    x = 338,573,894,381.03/586,190.48
  6. Step 6: Final answer
    x = 577,583.41

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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.