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Finding the Fourth Proportional to 477,955.16, 716,932.76 and 178,459.10

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Solution

The fourth proportional to 477,955.16, 716,932.76 and 178,459.10 is: 267,688.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,955.16 : 716,932.76 = 178,459.10 : x
  2. Step 2: Convert to fraction form
    477,955.16/716,932.76 = 178,459.10/x
  3. Step 3: Cross multiply
    477,955.16x = 716,932.76 × 178,459.10
  4. Step 4: Simplify right side
    477,955.16x = 127,943,170,633.16
  5. Step 5: Solve for x
    x = 127,943,170,633.16/477,955.16
  6. Step 6: Final answer
    x = 267,688.65

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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.