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Finding the Fourth Proportional to 492,482.71, 679,585.35 and 277,675.57

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Solution

The fourth proportional to 492,482.71, 679,585.35 and 277,675.57 is: 383,169.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,482.71 : 679,585.35 = 277,675.57 : x
  2. Step 2: Convert to fraction form
    492,482.71/679,585.35 = 277,675.57/x
  3. Step 3: Cross multiply
    492,482.71x = 679,585.35 × 277,675.57
  4. Step 4: Simplify right side
    492,482.71x = 188,704,249,424.90
  5. Step 5: Solve for x
    x = 188,704,249,424.90/492,482.71
  6. Step 6: Final answer
    x = 383,169.29

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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.