Home / 724,325.28-999,569.53-434,105.42

Finding the Fourth Proportional to 724,325.28, 999,569.53 and 434,105.42

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Solution

The fourth proportional to 724,325.28, 999,569.53 and 434,105.42 is: 599,065.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,325.28 : 999,569.53 = 434,105.42 : x
  2. Step 2: Convert to fraction form
    724,325.28/999,569.53 = 434,105.42/x
  3. Step 3: Cross multiply
    724,325.28x = 999,569.53 × 434,105.42
  4. Step 4: Simplify right side
    724,325.28x = 433,918,550,639.85
  5. Step 5: Solve for x
    x = 433,918,550,639.85/724,325.28
  6. Step 6: Final answer
    x = 599,065.87

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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.