Home / 619,390.10-929,631.90-366,354.20

Finding the Fourth Proportional to 619,390.10, 929,631.90 and 366,354.20

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Solution

The fourth proportional to 619,390.10, 929,631.90 and 366,354.20 is: 549,854.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,390.10 : 929,631.90 = 366,354.20 : x
  2. Step 2: Convert to fraction form
    619,390.10/929,631.90 = 366,354.20/x
  3. Step 3: Cross multiply
    619,390.10x = 929,631.90 × 366,354.20
  4. Step 4: Simplify right side
    619,390.10x = 340,574,551,018.98
  5. Step 5: Solve for x
    x = 340,574,551,018.98/619,390.10
  6. Step 6: Final answer
    x = 549,854.69

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1.5x scale

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.