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Finding the Fourth Proportional to 710,637.12, 980,779.26 and 452,431.60

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Solution

The fourth proportional to 710,637.12, 980,779.26 and 452,431.60 is: 624,419.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,637.12 : 980,779.26 = 452,431.60 : x
  2. Step 2: Convert to fraction form
    710,637.12/980,779.26 = 452,431.60/x
  3. Step 3: Cross multiply
    710,637.12x = 980,779.26 × 452,431.60
  4. Step 4: Simplify right side
    710,637.12x = 443,735,529,848.62
  5. Step 5: Solve for x
    x = 443,735,529,848.62/710,637.12
  6. Step 6: Final answer
    x = 624,419.30

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1.5x scale

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.