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Finding the Fourth Proportional to 525,783.20, 788,674.80 and 289,034.40

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Solution

The fourth proportional to 525,783.20, 788,674.80 and 289,034.40 is: 433,551.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,783.20 : 788,674.80 = 289,034.40 : x
  2. Step 2: Convert to fraction form
    525,783.20/788,674.80 = 289,034.40/x
  3. Step 3: Cross multiply
    525,783.20x = 788,674.80 × 289,034.40
  4. Step 4: Simplify right side
    525,783.20x = 227,954,147,613.12
  5. Step 5: Solve for x
    x = 227,954,147,613.12/525,783.20
  6. Step 6: Final answer
    x = 433,551.60

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Similar ratio
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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.