Home / 578,421.80-867,762.30-223,404.20

Finding the Fourth Proportional to 578,421.80, 867,762.30 and 223,404.20

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Solution

The fourth proportional to 578,421.80, 867,762.30 and 223,404.20 is: 335,156.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,421.80 : 867,762.30 = 223,404.20 : x
  2. Step 2: Convert to fraction form
    578,421.80/867,762.30 = 223,404.20/x
  3. Step 3: Cross multiply
    578,421.80x = 867,762.30 × 223,404.20
  4. Step 4: Simplify right side
    578,421.80x = 193,861,742,421.66
  5. Step 5: Solve for x
    x = 193,861,742,421.66/578,421.80
  6. Step 6: Final answer
    x = 335,156.36

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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.