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Finding the Fourth Proportional to 549,011.30, 757,600.41 and 307,253.06

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Solution

The fourth proportional to 549,011.30, 757,600.41 and 307,253.06 is: 423,989.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,011.30 : 757,600.41 = 307,253.06 : x
  2. Step 2: Convert to fraction form
    549,011.30/757,600.41 = 307,253.06/x
  3. Step 3: Cross multiply
    549,011.30x = 757,600.41 × 307,253.06
  4. Step 4: Simplify right side
    549,011.30x = 232,775,044,229.76
  5. Step 5: Solve for x
    x = 232,775,044,229.76/549,011.30
  6. Step 6: Final answer
    x = 423,989.53

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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.