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Finding the Fourth Proportional to 528,461.73, 792,690.45 and 191,423.50

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Solution

The fourth proportional to 528,461.73, 792,690.45 and 191,423.50 is: 287,134.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,461.73 : 792,690.45 = 191,423.50 : x
  2. Step 2: Convert to fraction form
    528,461.73/792,690.45 = 191,423.50/x
  3. Step 3: Cross multiply
    528,461.73x = 792,690.45 × 191,423.50
  4. Step 4: Simplify right side
    528,461.73x = 151,739,578,175.40
  5. Step 5: Solve for x
    x = 151,739,578,175.40/528,461.73
  6. Step 6: Final answer
    x = 287,134.47

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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.