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Finding the Fourth Proportional to 524,729.40, 786,186.90 and 243,670.20

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Solution

The fourth proportional to 524,729.40, 786,186.90 and 243,670.20 is: 365,084.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,729.40 : 786,186.90 = 243,670.20 : x
  2. Step 2: Convert to fraction form
    524,729.40/786,186.90 = 243,670.20/x
  3. Step 3: Cross multiply
    524,729.40x = 786,186.90 × 243,670.20
  4. Step 4: Simplify right side
    524,729.40x = 191,570,319,160.38
  5. Step 5: Solve for x
    x = 191,570,319,160.38/524,729.40
  6. Step 6: Final answer
    x = 365,084.02

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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.