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Finding the Fourth Proportional to 525,717.60, 788,576.40 and 288,938.40

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Solution

The fourth proportional to 525,717.60, 788,576.40 and 288,938.40 is: 433,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,717.60 : 788,576.40 = 288,938.40 : x
  2. Step 2: Convert to fraction form
    525,717.60/788,576.40 = 288,938.40/x
  3. Step 3: Cross multiply
    525,717.60x = 788,576.40 × 288,938.40
  4. Step 4: Simplify right side
    525,717.60x = 227,850,003,293.76
  5. Step 5: Solve for x
    x = 227,850,003,293.76/525,717.60
  6. Step 6: Final answer
    x = 433,407.60

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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.