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Finding the Fourth Proportional to 525,074.40, 787,611.60 and 525,074.40

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Solution

The fourth proportional to 525,074.40, 787,611.60 and 525,074.40 is: 787,611.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,074.40 : 787,611.60 = 525,074.40 : x
  2. Step 2: Convert to fraction form
    525,074.40/787,611.60 = 525,074.40/x
  3. Step 3: Cross multiply
    525,074.40x = 787,611.60 × 525,074.40
  4. Step 4: Simplify right side
    525,074.40x = 413,554,688,303.04
  5. Step 5: Solve for x
    x = 413,554,688,303.04/525,074.40
  6. Step 6: Final answer
    x = 787,611.60

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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.