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Finding the Fourth Proportional to 616,953.60, 851,401.80 and 358,843.86

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Solution

The fourth proportional to 616,953.60, 851,401.80 and 358,843.86 is: 495,207.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,953.60 : 851,401.80 = 358,843.86 : x
  2. Step 2: Convert to fraction form
    616,953.60/851,401.80 = 358,843.86/x
  3. Step 3: Cross multiply
    616,953.60x = 851,401.80 × 358,843.86
  4. Step 4: Simplify right side
    616,953.60x = 305,520,308,322.95
  5. Step 5: Solve for x
    x = 305,520,308,322.95/616,953.60
  6. Step 6: Final answer
    x = 495,207.92

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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.