Home / 1,109,084.80-1,663,621.80-434,689.60

Finding the Fourth Proportional to 1,109,084.80, 1,663,621.80 and 434,689.60

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Solution

The fourth proportional to 1,109,084.80, 1,663,621.80 and 434,689.60 is: 652,032.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,084.80 : 1,663,621.80 = 434,689.60 : x
  2. Step 2: Convert to fraction form
    1,109,084.80/1,663,621.80 = 434,689.60/x
  3. Step 3: Cross multiply
    1,109,084.80x = 1,663,621.80 × 434,689.60
  4. Step 4: Simplify right side
    1,109,084.80x = 723,159,094,793.28
  5. Step 5: Solve for x
    x = 723,159,094,793.28/1,109,084.80
  6. Step 6: Final answer
    x = 652,032.28

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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.