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Finding the Fourth Proportional to 556,776.52, 768,353.60 and 302,127.72

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Solution

The fourth proportional to 556,776.52, 768,353.60 and 302,127.72 is: 416,937.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,776.52 : 768,353.60 = 302,127.72 : x
  2. Step 2: Convert to fraction form
    556,776.52/768,353.60 = 302,127.72/x
  3. Step 3: Cross multiply
    556,776.52x = 768,353.60 × 302,127.72
  4. Step 4: Simplify right side
    556,776.52x = 232,140,921,321.79
  5. Step 5: Solve for x
    x = 232,140,921,321.79/556,776.52
  6. Step 6: Final answer
    x = 416,937.34

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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.