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Finding the Fourth Proportional to 572,059.76, 786,643.08 and 496,477.04

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Solution

The fourth proportional to 572,059.76, 786,643.08 and 496,477.04 is: 682,708.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,059.76 : 786,643.08 = 496,477.04 : x
  2. Step 2: Convert to fraction form
    572,059.76/786,643.08 = 496,477.04/x
  3. Step 3: Cross multiply
    572,059.76x = 786,643.08 × 496,477.04
  4. Step 4: Simplify right side
    572,059.76x = 390,550,227,894.88
  5. Step 5: Solve for x
    x = 390,550,227,894.88/572,059.76
  6. Step 6: Final answer
    x = 682,708.79

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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.