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Finding the Fourth Proportional to 561,200.51, 774,711.60 and 357,530.69

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Solution

The fourth proportional to 561,200.51, 774,711.60 and 357,530.69 is: 493,554.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,200.51 : 774,711.60 = 357,530.69 : x
  2. Step 2: Convert to fraction form
    561,200.51/774,711.60 = 357,530.69/x
  3. Step 3: Cross multiply
    561,200.51x = 774,711.60 × 357,530.69
  4. Step 4: Simplify right side
    561,200.51x = 276,983,172,899.00
  5. Step 5: Solve for x
    x = 276,983,172,899.00/561,200.51
  6. Step 6: Final answer
    x = 493,554.74

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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.