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Finding the Fourth Proportional to 416,154.36, 574,110.75 and 243,985.22

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Solution

The fourth proportional to 416,154.36, 574,110.75 and 243,985.22 is: 336,592.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,154.36 : 574,110.75 = 243,985.22 : x
  2. Step 2: Convert to fraction form
    416,154.36/574,110.75 = 243,985.22/x
  3. Step 3: Cross multiply
    416,154.36x = 574,110.75 × 243,985.22
  4. Step 4: Simplify right side
    416,154.36x = 140,074,537,643.12
  5. Step 5: Solve for x
    x = 140,074,537,643.12/416,154.36
  6. Step 6: Final answer
    x = 336,592.74

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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.