Home / 724,813.40-1,087,220.10-619,837.40

Finding the Fourth Proportional to 724,813.40, 1,087,220.10 and 619,837.40

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Solution

The fourth proportional to 724,813.40, 1,087,220.10 and 619,837.40 is: 929,756.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,813.40 : 1,087,220.10 = 619,837.40 : x
  2. Step 2: Convert to fraction form
    724,813.40/1,087,220.10 = 619,837.40/x
  3. Step 3: Cross multiply
    724,813.40x = 1,087,220.10 × 619,837.40
  4. Step 4: Simplify right side
    724,813.40x = 673,899,680,011.74
  5. Step 5: Solve for x
    x = 673,899,680,011.74/724,813.40
  6. Step 6: Final answer
    x = 929,756.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.