Home / 521,409.75-719,545.46-282,945.75

Finding the Fourth Proportional to 521,409.75, 719,545.46 and 282,945.75

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Solution

The fourth proportional to 521,409.75, 719,545.46 and 282,945.75 is: 390,465.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,409.75 : 719,545.46 = 282,945.75 : x
  2. Step 2: Convert to fraction form
    521,409.75/719,545.46 = 282,945.75/x
  3. Step 3: Cross multiply
    521,409.75x = 719,545.46 × 282,945.75
  4. Step 4: Simplify right side
    521,409.75x = 203,592,328,424.07
  5. Step 5: Solve for x
    x = 203,592,328,424.07/521,409.75
  6. Step 6: Final answer
    x = 390,465.14

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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.