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Finding the Fourth Proportional to 573,160.32, 858,118.32 and 438,069.60

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Solution

The fourth proportional to 573,160.32, 858,118.32 and 438,069.60 is: 655,864.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,160.32 : 858,118.32 = 438,069.60 : x
  2. Step 2: Convert to fraction form
    573,160.32/858,118.32 = 438,069.60/x
  3. Step 3: Cross multiply
    573,160.32x = 858,118.32 × 438,069.60
  4. Step 4: Simplify right side
    573,160.32x = 375,915,549,195.07
  5. Step 5: Solve for x
    x = 375,915,549,195.07/573,160.32
  6. Step 6: Final answer
    x = 655,864.57

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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.