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Finding the Fourth Proportional to 672,652,938.60, 1,008,979,407.90 and 672,652,938.60

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Solution

The fourth proportional to 672,652,938.60, 1,008,979,407.90 and 672,652,938.60 is: 1,008,979,407.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,652,938.60 : 1,008,979,407.90 = 672,652,938.60 : x
  2. Step 2: Convert to fraction form
    672,652,938.60/1,008,979,407.90 = 672,652,938.60/x
  3. Step 3: Cross multiply
    672,652,938.60x = 1,008,979,407.90 × 672,652,938.60
  4. Step 4: Simplify right side
    672,652,938.60x = 678,692,963,710,823,040
  5. Step 5: Solve for x
    x = 678,692,963,710,823,040/672,652,938.60
  6. Step 6: Final answer
    x = 1,008,979,407.90

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1.5x scale

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.