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Finding the Fourth Proportional to 260,585.04, 390,879.12 and 73,598.16

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Solution

The fourth proportional to 260,585.04, 390,879.12 and 73,598.16 is: 110,397.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,585.04 : 390,879.12 = 73,598.16 : x
  2. Step 2: Convert to fraction form
    260,585.04/390,879.12 = 73,598.16/x
  3. Step 3: Cross multiply
    260,585.04x = 390,879.12 × 73,598.16
  4. Step 4: Simplify right side
    260,585.04x = 28,767,984,014.42
  5. Step 5: Solve for x
    x = 28,767,984,014.42/260,585.04
  6. Step 6: Final answer
    x = 110,397.68

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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.