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Finding the Fourth Proportional to 525,066.80, 787,600.20 and 346,607.60

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Solution

The fourth proportional to 525,066.80, 787,600.20 and 346,607.60 is: 519,911.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,066.80 : 787,600.20 = 346,607.60 : x
  2. Step 2: Convert to fraction form
    525,066.80/787,600.20 = 346,607.60/x
  3. Step 3: Cross multiply
    525,066.80x = 787,600.20 × 346,607.60
  4. Step 4: Simplify right side
    525,066.80x = 272,988,215,081.52
  5. Step 5: Solve for x
    x = 272,988,215,081.52/525,066.80
  6. Step 6: Final answer
    x = 519,911.40

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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.