Home / 528,526.12-729,366.54-302,176.36

Finding the Fourth Proportional to 528,526.12, 729,366.54 and 302,176.36

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Solution

The fourth proportional to 528,526.12, 729,366.54 and 302,176.36 is: 417,003.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,526.12 : 729,366.54 = 302,176.36 : x
  2. Step 2: Convert to fraction form
    528,526.12/729,366.54 = 302,176.36/x
  3. Step 3: Cross multiply
    528,526.12x = 729,366.54 × 302,176.36
  4. Step 4: Simplify right side
    528,526.12x = 220,397,326,162.99
  5. Step 5: Solve for x
    x = 220,397,326,162.99/528,526.12
  6. Step 6: Final answer
    x = 417,003.66

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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.