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Finding the Fourth Proportional to 762,672.15, 1,053,880.04 and 555,580.10

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Solution

The fourth proportional to 762,672.15, 1,053,880.04 and 555,580.10 is: 767,714.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,672.15 : 1,053,880.04 = 555,580.10 : x
  2. Step 2: Convert to fraction form
    762,672.15/1,053,880.04 = 555,580.10/x
  3. Step 3: Cross multiply
    762,672.15x = 1,053,880.04 × 555,580.10
  4. Step 4: Simplify right side
    762,672.15x = 585,514,782,034.85
  5. Step 5: Solve for x
    x = 585,514,782,034.85/762,672.15
  6. Step 6: Final answer
    x = 767,714.91

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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.