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Finding the Fourth Proportional to 713,643.42, 1,070,465.13 and 240,289.14

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Solution

The fourth proportional to 713,643.42, 1,070,465.13 and 240,289.14 is: 360,433.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,643.42 : 1,070,465.13 = 240,289.14 : x
  2. Step 2: Convert to fraction form
    713,643.42/1,070,465.13 = 240,289.14/x
  3. Step 3: Cross multiply
    713,643.42x = 1,070,465.13 × 240,289.14
  4. Step 4: Simplify right side
    713,643.42x = 257,221,145,487.69
  5. Step 5: Solve for x
    x = 257,221,145,487.69/713,643.42
  6. Step 6: Final answer
    x = 360,433.71

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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.