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Finding the Fourth Proportional to 555,962.08, 767,229 and 301,313.20

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Solution

The fourth proportional to 555,962.08, 767,229 and 301,313.20 is: 415,812.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,962.08 : 767,229 = 301,313.20 : x
  2. Step 2: Convert to fraction form
    555,962.08/767,229 = 301,313.20/x
  3. Step 3: Cross multiply
    555,962.08x = 767,229 × 301,313.20
  4. Step 4: Simplify right side
    555,962.08x = 231,176,225,122.80
  5. Step 5: Solve for x
    x = 231,176,225,122.80/555,962.08
  6. Step 6: Final answer
    x = 415,812.94

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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.