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Finding the Fourth Proportional to 734,493.60, 1,101,740.40 and 615,520.80

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Solution

The fourth proportional to 734,493.60, 1,101,740.40 and 615,520.80 is: 923,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,493.60 : 1,101,740.40 = 615,520.80 : x
  2. Step 2: Convert to fraction form
    734,493.60/1,101,740.40 = 615,520.80/x
  3. Step 3: Cross multiply
    734,493.60x = 1,101,740.40 × 615,520.80
  4. Step 4: Simplify right side
    734,493.60x = 678,144,132,400.32
  5. Step 5: Solve for x
    x = 678,144,132,400.32/734,493.60
  6. Step 6: Final answer
    x = 923,281.20

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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.