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Finding the Fourth Proportional to 545,840.10, 818,760.15 and 534,176.10

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Solution

The fourth proportional to 545,840.10, 818,760.15 and 534,176.10 is: 801,264.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,840.10 : 818,760.15 = 534,176.10 : x
  2. Step 2: Convert to fraction form
    545,840.10/818,760.15 = 534,176.10/x
  3. Step 3: Cross multiply
    545,840.10x = 818,760.15 × 534,176.10
  4. Step 4: Simplify right side
    545,840.10x = 437,362,103,762.42
  5. Step 5: Solve for x
    x = 437,362,103,762.42/545,840.10
  6. Step 6: Final answer
    x = 801,264.15

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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.