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Finding the Fourth Proportional to 715,152.60, 987,169.56 and 473,513.03

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Solution

The fourth proportional to 715,152.60, 987,169.56 and 473,513.03 is: 653,619.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,152.60 : 987,169.56 = 473,513.03 : x
  2. Step 2: Convert to fraction form
    715,152.60/987,169.56 = 473,513.03/x
  3. Step 3: Cross multiply
    715,152.60x = 987,169.56 × 473,513.03
  4. Step 4: Simplify right side
    715,152.60x = 467,437,649,479.37
  5. Step 5: Solve for x
    x = 467,437,649,479.37/715,152.60
  6. Step 6: Final answer
    x = 653,619.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.