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Finding the Fourth Proportional to 652,467.40, 978,701.10 and 495,003.40

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Solution

The fourth proportional to 652,467.40, 978,701.10 and 495,003.40 is: 742,505.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,467.40 : 978,701.10 = 495,003.40 : x
  2. Step 2: Convert to fraction form
    652,467.40/978,701.10 = 495,003.40/x
  3. Step 3: Cross multiply
    652,467.40x = 978,701.10 × 495,003.40
  4. Step 4: Simplify right side
    652,467.40x = 484,460,372,083.74
  5. Step 5: Solve for x
    x = 484,460,372,083.74/652,467.40
  6. Step 6: Final answer
    x = 742,505.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.