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Finding the Fourth Proportional to 615,866.76, 849,967.83 and 512,318.03

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Solution

The fourth proportional to 615,866.76, 849,967.83 and 512,318.03 is: 707,058.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,866.76 : 849,967.83 = 512,318.03 : x
  2. Step 2: Convert to fraction form
    615,866.76/849,967.83 = 512,318.03/x
  3. Step 3: Cross multiply
    615,866.76x = 849,967.83 × 512,318.03
  4. Step 4: Simplify right side
    615,866.76x = 435,453,844,760.21
  5. Step 5: Solve for x
    x = 435,453,844,760.21/615,866.76
  6. Step 6: Final answer
    x = 707,058.53

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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.