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Finding the Fourth Proportional to 674,303.52, 930,459.60 and 372,479.52

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Solution

The fourth proportional to 674,303.52, 930,459.60 and 372,479.52 is: 513,977.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,303.52 : 930,459.60 = 372,479.52 : x
  2. Step 2: Convert to fraction form
    674,303.52/930,459.60 = 372,479.52/x
  3. Step 3: Cross multiply
    674,303.52x = 930,459.60 × 372,479.52
  4. Step 4: Simplify right side
    674,303.52x = 346,577,145,187.39
  5. Step 5: Solve for x
    x = 346,577,145,187.39/674,303.52
  6. Step 6: Final answer
    x = 513,977.96

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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.