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Finding the Fourth Proportional to 768,170.14, 1,059,916.54 and 441,420.04

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Solution

The fourth proportional to 768,170.14, 1,059,916.54 and 441,420.04 is: 609,068.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,170.14 : 1,059,916.54 = 441,420.04 : x
  2. Step 2: Convert to fraction form
    768,170.14/1,059,916.54 = 441,420.04/x
  3. Step 3: Cross multiply
    768,170.14x = 1,059,916.54 × 441,420.04
  4. Step 4: Simplify right side
    768,170.14x = 467,868,401,483.46
  5. Step 5: Solve for x
    x = 467,868,401,483.46/768,170.14
  6. Step 6: Final answer
    x = 609,068.72

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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.