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Finding the Fourth Proportional to 615,904.60, 863,510.60 and 615,904.60

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Solution

The fourth proportional to 615,904.60, 863,510.60 and 615,904.60 is: 863,510.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,904.60 : 863,510.60 = 615,904.60 : x
  2. Step 2: Convert to fraction form
    615,904.60/863,510.60 = 615,904.60/x
  3. Step 3: Cross multiply
    615,904.60x = 863,510.60 × 615,904.60
  4. Step 4: Simplify right side
    615,904.60x = 531,840,150,688.76
  5. Step 5: Solve for x
    x = 531,840,150,688.76/615,904.60
  6. Step 6: Final answer
    x = 863,510.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.