Home / 528,890.67-729,869.13-302,536.17

Finding the Fourth Proportional to 528,890.67, 729,869.13 and 302,536.17

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Solution

The fourth proportional to 528,890.67, 729,869.13 and 302,536.17 is: 417,499.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,890.67 : 729,869.13 = 302,536.17 : x
  2. Step 2: Convert to fraction form
    528,890.67/729,869.13 = 302,536.17/x
  3. Step 3: Cross multiply
    528,890.67x = 729,869.13 × 302,536.17
  4. Step 4: Simplify right side
    528,890.67x = 220,811,811,191.43
  5. Step 5: Solve for x
    x = 220,811,811,191.43/528,890.67
  6. Step 6: Final answer
    x = 417,499.92

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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.