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Finding the Fourth Proportional to 855,714.94, 1,180,886.89 and 468,554.89

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Solution

The fourth proportional to 855,714.94, 1,180,886.89 and 468,554.89 is: 646,605.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,714.94 : 1,180,886.89 = 468,554.89 : x
  2. Step 2: Convert to fraction form
    855,714.94/1,180,886.89 = 468,554.89/x
  3. Step 3: Cross multiply
    855,714.94x = 1,180,886.89 × 468,554.89
  4. Step 4: Simplify right side
    855,714.94x = 553,310,325,815.49
  5. Step 5: Solve for x
    x = 553,310,325,815.49/855,714.94
  6. Step 6: Final answer
    x = 646,605.90

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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.