Home / 528,669.87-729,565.16-286,952.49

Finding the Fourth Proportional to 528,669.87, 729,565.16 and 286,952.49

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Solution

The fourth proportional to 528,669.87, 729,565.16 and 286,952.49 is: 395,994.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,669.87 : 729,565.16 = 286,952.49 : x
  2. Step 2: Convert to fraction form
    528,669.87/729,565.16 = 286,952.49/x
  3. Step 3: Cross multiply
    528,669.87x = 729,565.16 × 286,952.49
  4. Step 4: Simplify right side
    528,669.87x = 209,350,537,844.49
  5. Step 5: Solve for x
    x = 209,350,537,844.49/528,669.87
  6. Step 6: Final answer
    x = 395,994.83

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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.