Home / 528,669.50-729,564.64-286,952.12

Finding the Fourth Proportional to 528,669.50, 729,564.64 and 286,952.12

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Solution

The fourth proportional to 528,669.50, 729,564.64 and 286,952.12 is: 395,994.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,669.50 : 729,564.64 = 286,952.12 : x
  2. Step 2: Convert to fraction form
    528,669.50/729,564.64 = 286,952.12/x
  3. Step 3: Cross multiply
    528,669.50x = 729,564.64 × 286,952.12
  4. Step 4: Simplify right side
    528,669.50x = 209,350,120,125.04
  5. Step 5: Solve for x
    x = 209,350,120,125.04/528,669.50
  6. Step 6: Final answer
    x = 395,994.32

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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.