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Finding the Fourth Proportional to 535,539.90, 803,312.59 and 180,557.00

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Solution

The fourth proportional to 535,539.90, 803,312.59 and 180,557.00 is: 270,836.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,539.90 : 803,312.59 = 180,557.00 : x
  2. Step 2: Convert to fraction form
    535,539.90/803,312.59 = 180,557.00/x
  3. Step 3: Cross multiply
    535,539.90x = 803,312.59 × 180,557.00
  4. Step 4: Simplify right side
    535,539.90x = 145,043,710,195.64
  5. Step 5: Solve for x
    x = 145,043,710,195.64/535,539.90
  6. Step 6: Final answer
    x = 270,836.42

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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.