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Finding the Fourth Proportional to 615,867.26, 849,968.52 and 512,318.53

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Solution

The fourth proportional to 615,867.26, 849,968.52 and 512,318.53 is: 707,059.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,867.26 : 849,968.52 = 512,318.53 : x
  2. Step 2: Convert to fraction form
    615,867.26/849,968.52 = 512,318.53/x
  3. Step 3: Cross multiply
    615,867.26x = 849,968.52 × 512,318.53
  4. Step 4: Simplify right side
    615,867.26x = 435,454,622,712.68
  5. Step 5: Solve for x
    x = 435,454,622,712.68/615,867.26
  6. Step 6: Final answer
    x = 707,059.22

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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.