Home / 528,330.23-729,095.71-301,980.59

Finding the Fourth Proportional to 528,330.23, 729,095.71 and 301,980.59

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Solution

The fourth proportional to 528,330.23, 729,095.71 and 301,980.59 is: 416,733.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,330.23 : 729,095.71 = 301,980.59 : x
  2. Step 2: Convert to fraction form
    528,330.23/729,095.71 = 301,980.59/x
  3. Step 3: Cross multiply
    528,330.23x = 729,095.71 × 301,980.59
  4. Step 4: Simplify right side
    528,330.23x = 220,172,752,672.27
  5. Step 5: Solve for x
    x = 220,172,752,672.27/528,330.23
  6. Step 6: Final answer
    x = 416,733.21

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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.