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Finding the Fourth Proportional to 647,533.40, 971,300.10 and 471,277.40

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Solution

The fourth proportional to 647,533.40, 971,300.10 and 471,277.40 is: 706,916.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,533.40 : 971,300.10 = 471,277.40 : x
  2. Step 2: Convert to fraction form
    647,533.40/971,300.10 = 471,277.40/x
  3. Step 3: Cross multiply
    647,533.40x = 971,300.10 × 471,277.40
  4. Step 4: Simplify right side
    647,533.40x = 457,751,785,747.74
  5. Step 5: Solve for x
    x = 457,751,785,747.74/647,533.40
  6. Step 6: Final answer
    x = 706,916.10

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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.