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Finding the Fourth Proportional to 713,830.30, 1,068,641.74 and 625,256.80

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Solution

The fourth proportional to 713,830.30, 1,068,641.74 and 625,256.80 is: 936,042.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,830.30 : 1,068,641.74 = 625,256.80 : x
  2. Step 2: Convert to fraction form
    713,830.30/1,068,641.74 = 625,256.80/x
  3. Step 3: Cross multiply
    713,830.30x = 1,068,641.74 × 625,256.80
  4. Step 4: Simplify right side
    713,830.30x = 668,175,514,698.83
  5. Step 5: Solve for x
    x = 668,175,514,698.83/713,830.30
  6. Step 6: Final answer
    x = 936,042.52

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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.