Home / 450,386.10-621,528.18-249,183.54

Finding the Fourth Proportional to 450,386.10, 621,528.18 and 249,183.54

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Solution

The fourth proportional to 450,386.10, 621,528.18 and 249,183.54 is: 343,870.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,386.10 : 621,528.18 = 249,183.54 : x
  2. Step 2: Convert to fraction form
    450,386.10/621,528.18 = 249,183.54/x
  3. Step 3: Cross multiply
    450,386.10x = 621,528.18 × 249,183.54
  4. Step 4: Simplify right side
    450,386.10x = 154,874,592,102.16
  5. Step 5: Solve for x
    x = 154,874,592,102.16/450,386.10
  6. Step 6: Final answer
    x = 343,870.72

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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.