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Finding the Fourth Proportional to 473,111.80, 709,667.70 and 434,404.60

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Solution

The fourth proportional to 473,111.80, 709,667.70 and 434,404.60 is: 651,606.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,111.80 : 709,667.70 = 434,404.60 : x
  2. Step 2: Convert to fraction form
    473,111.80/709,667.70 = 434,404.60/x
  3. Step 3: Cross multiply
    473,111.80x = 709,667.70 × 434,404.60
  4. Step 4: Simplify right side
    473,111.80x = 308,282,913,351.42
  5. Step 5: Solve for x
    x = 308,282,913,351.42/473,111.80
  6. Step 6: Final answer
    x = 651,606.90

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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.