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Finding the Fourth Proportional to 525,483.64, 719,915.20 and 505,803.48

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Solution

The fourth proportional to 525,483.64, 719,915.20 and 505,803.48 is: 692,953.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,483.64 : 719,915.20 = 505,803.48 : x
  2. Step 2: Convert to fraction form
    525,483.64/719,915.20 = 505,803.48/x
  3. Step 3: Cross multiply
    525,483.64x = 719,915.20 × 505,803.48
  4. Step 4: Simplify right side
    525,483.64x = 364,135,613,464.90
  5. Step 5: Solve for x
    x = 364,135,613,464.90/525,483.64
  6. Step 6: Final answer
    x = 692,953.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.