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Finding the Fourth Proportional to 542,463.90, 813,501.45 and 276,135.90

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Solution

The fourth proportional to 542,463.90, 813,501.45 and 276,135.90 is: 414,104.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,463.90 : 813,501.45 = 276,135.90 : x
  2. Step 2: Convert to fraction form
    542,463.90/813,501.45 = 276,135.90/x
  3. Step 3: Cross multiply
    542,463.90x = 813,501.45 × 276,135.90
  4. Step 4: Simplify right side
    542,463.90x = 224,636,955,047.06
  5. Step 5: Solve for x
    x = 224,636,955,047.06/542,463.90
  6. Step 6: Final answer
    x = 414,104.89

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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.