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Finding the Fourth Proportional to 555,931.81, 767,165.34 and 301,277.53

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Solution

The fourth proportional to 555,931.81, 767,165.34 and 301,277.53 is: 415,751.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,931.81 : 767,165.34 = 301,277.53 : x
  2. Step 2: Convert to fraction form
    555,931.81/767,165.34 = 301,277.53/x
  3. Step 3: Cross multiply
    555,931.81x = 767,165.34 × 301,277.53
  4. Step 4: Simplify right side
    555,931.81x = 231,129,678,736.81
  5. Step 5: Solve for x
    x = 231,129,678,736.81/555,931.81
  6. Step 6: Final answer
    x = 415,751.85

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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.