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Finding the Fourth Proportional to 610,185.60, 915,364.80 and 189,417.60

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Solution

The fourth proportional to 610,185.60, 915,364.80 and 189,417.60 is: 284,153.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,185.60 : 915,364.80 = 189,417.60 : x
  2. Step 2: Convert to fraction form
    610,185.60/915,364.80 = 189,417.60/x
  3. Step 3: Cross multiply
    610,185.60x = 915,364.80 × 189,417.60
  4. Step 4: Simplify right side
    610,185.60x = 173,386,203,540.48
  5. Step 5: Solve for x
    x = 173,386,203,540.48/610,185.60
  6. Step 6: Final answer
    x = 284,153.22

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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.