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Finding the Fourth Proportional to 710,643.12, 980,787.54 and 452,437.60

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Solution

The fourth proportional to 710,643.12, 980,787.54 and 452,437.60 is: 624,427.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,643.12 : 980,787.54 = 452,437.60 : x
  2. Step 2: Convert to fraction form
    710,643.12/980,787.54 = 452,437.60/x
  3. Step 3: Cross multiply
    710,643.12x = 980,787.54 × 452,437.60
  4. Step 4: Simplify right side
    710,643.12x = 443,745,160,707.50
  5. Step 5: Solve for x
    x = 443,745,160,707.50/710,643.12
  6. Step 6: Final answer
    x = 624,427.58

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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.