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Finding the Fourth Proportional to 846,720.80, 1,168,470.60 and 464,754.08

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Solution

The fourth proportional to 846,720.80, 1,168,470.60 and 464,754.08 is: 641,358.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    846,720.80 : 1,168,470.60 = 464,754.08 : x
  2. Step 2: Convert to fraction form
    846,720.80/1,168,470.60 = 464,754.08/x
  3. Step 3: Cross multiply
    846,720.80x = 1,168,470.60 × 464,754.08
  4. Step 4: Simplify right side
    846,720.80x = 543,051,478,710.05
  5. Step 5: Solve for x
    x = 543,051,478,710.05/846,720.80
  6. Step 6: Final answer
    x = 641,358.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.