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Finding the Fourth Proportional to 536,478.70, 804,718.05 and 528,184.30

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Solution

The fourth proportional to 536,478.70, 804,718.05 and 528,184.30 is: 792,276.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,478.70 : 804,718.05 = 528,184.30 : x
  2. Step 2: Convert to fraction form
    536,478.70/804,718.05 = 528,184.30/x
  3. Step 3: Cross multiply
    536,478.70x = 804,718.05 × 528,184.30
  4. Step 4: Simplify right side
    536,478.70x = 425,039,439,936.62
  5. Step 5: Solve for x
    x = 425,039,439,936.62/536,478.70
  6. Step 6: Final answer
    x = 792,276.45

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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.