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Finding the Fourth Proportional to 564,535.80, 779,100.30 and 373,217.40

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Solution

The fourth proportional to 564,535.80, 779,100.30 and 373,217.40 is: 515,067.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,535.80 : 779,100.30 = 373,217.40 : x
  2. Step 2: Convert to fraction form
    564,535.80/779,100.30 = 373,217.40/x
  3. Step 3: Cross multiply
    564,535.80x = 779,100.30 × 373,217.40
  4. Step 4: Simplify right side
    564,535.80x = 290,773,788,305.22
  5. Step 5: Solve for x
    x = 290,773,788,305.22/564,535.80
  6. Step 6: Final answer
    x = 515,067.05

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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.