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Finding the Fourth Proportional to 359,314.40, 495,853.08 and 216,157.52

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Solution

The fourth proportional to 359,314.40, 495,853.08 and 216,157.52 is: 298,296.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,314.40 : 495,853.08 = 216,157.52 : x
  2. Step 2: Convert to fraction form
    359,314.40/495,853.08 = 216,157.52/x
  3. Step 3: Cross multiply
    359,314.40x = 495,853.08 × 216,157.52
  4. Step 4: Simplify right side
    359,314.40x = 107,182,372,057.16
  5. Step 5: Solve for x
    x = 107,182,372,057.16/359,314.40
  6. Step 6: Final answer
    x = 298,296.90

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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.