Home / 528,905.40-729,707.04-338,030.52

Finding the Fourth Proportional to 528,905.40, 729,707.04 and 338,030.52

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Solution

The fourth proportional to 528,905.40, 729,707.04 and 338,030.52 is: 466,365.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,905.40 : 729,707.04 = 338,030.52 : x
  2. Step 2: Convert to fraction form
    528,905.40/729,707.04 = 338,030.52/x
  3. Step 3: Cross multiply
    528,905.40x = 729,707.04 × 338,030.52
  4. Step 4: Simplify right side
    528,905.40x = 246,663,250,178.86
  5. Step 5: Solve for x
    x = 246,663,250,178.86/528,905.40
  6. Step 6: Final answer
    x = 466,365.54

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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.