Home / 869,560.21-1,200,005.52-525,348.28

Finding the Fourth Proportional to 869,560.21, 1,200,005.52 and 525,348.28

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Solution

The fourth proportional to 869,560.21, 1,200,005.52 and 525,348.28 is: 724,988.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,560.21 : 1,200,005.52 = 525,348.28 : x
  2. Step 2: Convert to fraction form
    869,560.21/1,200,005.52 = 525,348.28/x
  3. Step 3: Cross multiply
    869,560.21x = 1,200,005.52 × 525,348.28
  4. Step 4: Simplify right side
    869,560.21x = 630,420,832,922.49
  5. Step 5: Solve for x
    x = 630,420,832,922.49/869,560.21
  6. Step 6: Final answer
    x = 724,988.13

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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.