Home / 869,657.62-1,200,139.80-525,445.66

Finding the Fourth Proportional to 869,657.62, 1,200,139.80 and 525,445.66

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Solution

The fourth proportional to 869,657.62, 1,200,139.80 and 525,445.66 is: 725,122.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,657.62 : 1,200,139.80 = 525,445.66 : x
  2. Step 2: Convert to fraction form
    869,657.62/1,200,139.80 = 525,445.66/x
  3. Step 3: Cross multiply
    869,657.62x = 1,200,139.80 × 525,445.66
  4. Step 4: Simplify right side
    869,657.62x = 630,608,249,303.27
  5. Step 5: Solve for x
    x = 630,608,249,303.27/869,657.62
  6. Step 6: Final answer
    x = 725,122.43

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Double scale
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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.