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Finding the Fourth Proportional to 556,819.04, 768,410.76 and 302,170.20

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Solution

The fourth proportional to 556,819.04, 768,410.76 and 302,170.20 is: 416,995.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,819.04 : 768,410.76 = 302,170.20 : x
  2. Step 2: Convert to fraction form
    556,819.04/768,410.76 = 302,170.20/x
  3. Step 3: Cross multiply
    556,819.04x = 768,410.76 × 302,170.20
  4. Step 4: Simplify right side
    556,819.04x = 232,190,833,031.35
  5. Step 5: Solve for x
    x = 232,190,833,031.35/556,819.04
  6. Step 6: Final answer
    x = 416,995.14

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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.