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Finding the Fourth Proportional to 704,159.30, 971,737.89 and 381,868.40

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Solution

The fourth proportional to 704,159.30, 971,737.89 and 381,868.40 is: 526,977.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,159.30 : 971,737.89 = 381,868.40 : x
  2. Step 2: Convert to fraction form
    704,159.30/971,737.89 = 381,868.40/x
  3. Step 3: Cross multiply
    704,159.30x = 971,737.89 × 381,868.40
  4. Step 4: Simplify right side
    704,159.30x = 371,075,993,273.68
  5. Step 5: Solve for x
    x = 371,075,993,273.68/704,159.30
  6. Step 6: Final answer
    x = 526,977.34

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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.