Home / 370,317.40-511,038.30-209,172.76

Finding the Fourth Proportional to 370,317.40, 511,038.30 and 209,172.76

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Solution

The fourth proportional to 370,317.40, 511,038.30 and 209,172.76 is: 288,658.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,317.40 : 511,038.30 = 209,172.76 : x
  2. Step 2: Convert to fraction form
    370,317.40/511,038.30 = 209,172.76/x
  3. Step 3: Cross multiply
    370,317.40x = 511,038.30 × 209,172.76
  4. Step 4: Simplify right side
    370,317.40x = 106,895,291,676.71
  5. Step 5: Solve for x
    x = 106,895,291,676.71/370,317.40
  6. Step 6: Final answer
    x = 288,658.57

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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.