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Finding the Fourth Proportional to 577,205.30, 865,807.95 and 364,628.90

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Solution

The fourth proportional to 577,205.30, 865,807.95 and 364,628.90 is: 546,943.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,205.30 : 865,807.95 = 364,628.90 : x
  2. Step 2: Convert to fraction form
    577,205.30/865,807.95 = 364,628.90/x
  3. Step 3: Cross multiply
    577,205.30x = 865,807.95 × 364,628.90
  4. Step 4: Simplify right side
    577,205.30x = 315,698,600,419.76
  5. Step 5: Solve for x
    x = 315,698,600,419.76/577,205.30
  6. Step 6: Final answer
    x = 546,943.35

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Double scale
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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.