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Finding the Fourth Proportional to 450,719.12, 676,034.67 and 118,295.12

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Solution

The fourth proportional to 450,719.12, 676,034.67 and 118,295.12 is: 177,431.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,719.12 : 676,034.67 = 118,295.12 : x
  2. Step 2: Convert to fraction form
    450,719.12/676,034.67 = 118,295.12/x
  3. Step 3: Cross multiply
    450,719.12x = 676,034.67 × 118,295.12
  4. Step 4: Simplify right side
    450,719.12x = 79,971,602,411.81
  5. Step 5: Solve for x
    x = 79,971,602,411.81/450,719.12
  6. Step 6: Final answer
    x = 177,431.13

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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.