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Finding the Fourth Proportional to 364,085.70, 545,934.15 and 153,485.70

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Solution

The fourth proportional to 364,085.70, 545,934.15 and 153,485.70 is: 230,146.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,085.70 : 545,934.15 = 153,485.70 : x
  2. Step 2: Convert to fraction form
    364,085.70/545,934.15 = 153,485.70/x
  3. Step 3: Cross multiply
    364,085.70x = 545,934.15 × 153,485.70
  4. Step 4: Simplify right side
    364,085.70x = 83,793,085,166.66
  5. Step 5: Solve for x
    x = 83,793,085,166.66/364,085.70
  6. Step 6: Final answer
    x = 230,146.60

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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.