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Finding the Fourth Proportional to 615,872.52, 849,855.58 and 343,919.16

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Solution

The fourth proportional to 615,872.52, 849,855.58 and 343,919.16 is: 474,581.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,872.52 : 849,855.58 = 343,919.16 : x
  2. Step 2: Convert to fraction form
    615,872.52/849,855.58 = 343,919.16/x
  3. Step 3: Cross multiply
    615,872.52x = 849,855.58 × 343,919.16
  4. Step 4: Simplify right side
    615,872.52x = 292,281,617,194.91
  5. Step 5: Solve for x
    x = 292,281,617,194.91/615,872.52
  6. Step 6: Final answer
    x = 474,581.36

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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.