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Finding the Fourth Proportional to 615,287.03, 849,096.14 and 339,644.96

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Solution

The fourth proportional to 615,287.03, 849,096.14 and 339,644.96 is: 468,710.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,287.03 : 849,096.14 = 339,644.96 : x
  2. Step 2: Convert to fraction form
    615,287.03/849,096.14 = 339,644.96/x
  3. Step 3: Cross multiply
    615,287.03x = 849,096.14 × 339,644.96
  4. Step 4: Simplify right side
    615,287.03x = 288,391,224,506.45
  5. Step 5: Solve for x
    x = 288,391,224,506.45/615,287.03
  6. Step 6: Final answer
    x = 468,710.07

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Double scale
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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.