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Finding the Fourth Proportional to 530,569.80, 795,854.70 and 425,593.80

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Solution

The fourth proportional to 530,569.80, 795,854.70 and 425,593.80 is: 638,390.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,569.80 : 795,854.70 = 425,593.80 : x
  2. Step 2: Convert to fraction form
    530,569.80/795,854.70 = 425,593.80/x
  3. Step 3: Cross multiply
    530,569.80x = 795,854.70 × 425,593.80
  4. Step 4: Simplify right side
    530,569.80x = 338,710,826,020.86
  5. Step 5: Solve for x
    x = 338,710,826,020.86/530,569.80
  6. Step 6: Final answer
    x = 638,390.70

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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.