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Finding the Fourth Proportional to 934,672, 1,289,636.16 and 552,714.88

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Solution

The fourth proportional to 934,672, 1,289,636.16 and 552,714.88 is: 762,621.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,672 : 1,289,636.16 = 552,714.88 : x
  2. Step 2: Convert to fraction form
    934,672/1,289,636.16 = 552,714.88/x
  3. Step 3: Cross multiply
    934,672x = 1,289,636.16 × 552,714.88
  4. Step 4: Simplify right side
    934,672x = 712,801,095,418.06
  5. Step 5: Solve for x
    x = 712,801,095,418.06/934,672
  6. Step 6: Final answer
    x = 762,621.64

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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.