Home / 1,235,272.80-1,852,909.20-525,122.40

Finding the Fourth Proportional to 1,235,272.80, 1,852,909.20 and 525,122.40

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Solution

The fourth proportional to 1,235,272.80, 1,852,909.20 and 525,122.40 is: 787,683.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,272.80 : 1,852,909.20 = 525,122.40 : x
  2. Step 2: Convert to fraction form
    1,235,272.80/1,852,909.20 = 525,122.40/x
  3. Step 3: Cross multiply
    1,235,272.80x = 1,852,909.20 × 525,122.40
  4. Step 4: Simplify right side
    1,235,272.80x = 973,004,126,086.08
  5. Step 5: Solve for x
    x = 973,004,126,086.08/1,235,272.80
  6. Step 6: Final answer
    x = 787,683.60

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Double scale
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Similar ratio
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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.