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Finding the Fourth Proportional to 650,051.20, 975,076.80 and 591,990.40

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Solution

The fourth proportional to 650,051.20, 975,076.80 and 591,990.40 is: 887,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,051.20 : 975,076.80 = 591,990.40 : x
  2. Step 2: Convert to fraction form
    650,051.20/975,076.80 = 591,990.40/x
  3. Step 3: Cross multiply
    650,051.20x = 975,076.80 × 591,990.40
  4. Step 4: Simplify right side
    650,051.20x = 577,236,104,862.72
  5. Step 5: Solve for x
    x = 577,236,104,862.72/650,051.20
  6. Step 6: Final answer
    x = 887,985.60

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Double scale
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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.