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Finding the Fourth Proportional to 704,157.48, 971,737.80 and 381,867.48

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Solution

The fourth proportional to 704,157.48, 971,737.80 and 381,867.48 is: 526,977.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,157.48 : 971,737.80 = 381,867.48 : x
  2. Step 2: Convert to fraction form
    704,157.48/971,737.80 = 381,867.48/x
  3. Step 3: Cross multiply
    704,157.48x = 971,737.80 × 381,867.48
  4. Step 4: Simplify right side
    704,157.48x = 371,075,064,906.74
  5. Step 5: Solve for x
    x = 371,075,064,906.74/704,157.48
  6. Step 6: Final answer
    x = 526,977.38

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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.