Home / 434,436.60-651,654.90-209,969.40

Finding the Fourth Proportional to 434,436.60, 651,654.90 and 209,969.40

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Solution

The fourth proportional to 434,436.60, 651,654.90 and 209,969.40 is: 314,954.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,436.60 : 651,654.90 = 209,969.40 : x
  2. Step 2: Convert to fraction form
    434,436.60/651,654.90 = 209,969.40/x
  3. Step 3: Cross multiply
    434,436.60x = 651,654.90 × 209,969.40
  4. Step 4: Simplify right side
    434,436.60x = 136,827,588,360.06
  5. Step 5: Solve for x
    x = 136,827,588,360.06/434,436.60
  6. Step 6: Final answer
    x = 314,954.10

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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.