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Finding the Fourth Proportional to 433,894.80, 651,425.40 and 276,430.80

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Solution

The fourth proportional to 433,894.80, 651,425.40 and 276,430.80 is: 415,017.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,894.80 : 651,425.40 = 276,430.80 : x
  2. Step 2: Convert to fraction form
    433,894.80/651,425.40 = 276,430.80/x
  3. Step 3: Cross multiply
    433,894.80x = 651,425.40 × 276,430.80
  4. Step 4: Simplify right side
    433,894.80x = 180,074,044,462.32
  5. Step 5: Solve for x
    x = 180,074,044,462.32/433,894.80
  6. Step 6: Final answer
    x = 415,017.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.