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Finding the Fourth Proportional to 517,951,200.80, 776,926,801.20 and 354,692,525.60

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Solution

The fourth proportional to 517,951,200.80, 776,926,801.20 and 354,692,525.60 is: 532,038,788.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,951,200.80 : 776,926,801.20 = 354,692,525.60 : x
  2. Step 2: Convert to fraction form
    517,951,200.80/776,926,801.20 = 354,692,525.60/x
  3. Step 3: Cross multiply
    517,951,200.80x = 776,926,801.20 × 354,692,525.60
  4. Step 4: Simplify right side
    517,951,200.80x = 275,570,129,323,957,152
  5. Step 5: Solve for x
    x = 275,570,129,323,957,152/517,951,200.80
  6. Step 6: Final answer
    x = 532,038,788.40

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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.