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Finding the Fourth Proportional to 704,414,456.40, 988,220,972.40 and 704,414,456.40

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Solution

The fourth proportional to 704,414,456.40, 988,220,972.40 and 704,414,456.40 is: 988,220,972.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,414,456.40 : 988,220,972.40 = 704,414,456.40 : x
  2. Step 2: Convert to fraction form
    704,414,456.40/988,220,972.40 = 704,414,456.40/x
  3. Step 3: Cross multiply
    704,414,456.40x = 988,220,972.40 × 704,414,456.40
  4. Step 4: Simplify right side
    704,414,456.40x = 696,117,139,076,225,408
  5. Step 5: Solve for x
    x = 696,117,139,076,225,408/704,414,456.40
  6. Step 6: Final answer
    x = 988,220,972.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.