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Finding the Fourth Proportional to 615,935.34, 849,981.60 and 344,007.81

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Solution

The fourth proportional to 615,935.34, 849,981.60 and 344,007.81 is: 474,725.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,935.34 : 849,981.60 = 344,007.81 : x
  2. Step 2: Convert to fraction form
    615,935.34/849,981.60 = 344,007.81/x
  3. Step 3: Cross multiply
    615,935.34x = 849,981.60 × 344,007.81
  4. Step 4: Simplify right side
    615,935.34x = 292,400,308,756.30
  5. Step 5: Solve for x
    x = 292,400,308,756.30/615,935.34
  6. Step 6: Final answer
    x = 474,725.66

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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.