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Finding the Fourth Proportional to 908,772.55, 1,363,411.71 and 396,482.51

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Solution

The fourth proportional to 908,772.55, 1,363,411.71 and 396,482.51 is: 594,834.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,772.55 : 1,363,411.71 = 396,482.51 : x
  2. Step 2: Convert to fraction form
    908,772.55/1,363,411.71 = 396,482.51/x
  3. Step 3: Cross multiply
    908,772.55x = 1,363,411.71 × 396,482.51
  4. Step 4: Simplify right side
    908,772.55x = 540,568,900,352.72
  5. Step 5: Solve for x
    x = 540,568,900,352.72/908,772.55
  6. Step 6: Final answer
    x = 594,834.10

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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.