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Finding the Fourth Proportional to 525,710.80, 788,681.40 and 170,664.40

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Solution

The fourth proportional to 525,710.80, 788,681.40 and 170,664.40 is: 256,034.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,710.80 : 788,681.40 = 170,664.40 : x
  2. Step 2: Convert to fraction form
    525,710.80/788,681.40 = 170,664.40/x
  3. Step 3: Cross multiply
    525,710.80x = 788,681.40 × 170,664.40
  4. Step 4: Simplify right side
    525,710.80x = 134,599,837,922.16
  5. Step 5: Solve for x
    x = 134,599,837,922.16/525,710.80
  6. Step 6: Final answer
    x = 256,034.00

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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.