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Finding the Fourth Proportional to 506,038.53, 698,377.64 and 279,727.77

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Solution

The fourth proportional to 506,038.53, 698,377.64 and 279,727.77 is: 386,048.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,038.53 : 698,377.64 = 279,727.77 : x
  2. Step 2: Convert to fraction form
    506,038.53/698,377.64 = 279,727.77/x
  3. Step 3: Cross multiply
    506,038.53x = 698,377.64 × 279,727.77
  4. Step 4: Simplify right side
    506,038.53x = 195,355,618,456.42
  5. Step 5: Solve for x
    x = 195,355,618,456.42/506,038.53
  6. Step 6: Final answer
    x = 386,048.90

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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.