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Finding the Fourth Proportional to 507,038.85, 760,312.20 and 254,210.70

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Solution

The fourth proportional to 507,038.85, 760,312.20 and 254,210.70 is: 381,192.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,038.85 : 760,312.20 = 254,210.70 : x
  2. Step 2: Convert to fraction form
    507,038.85/760,312.20 = 254,210.70/x
  3. Step 3: Cross multiply
    507,038.85x = 760,312.20 × 254,210.70
  4. Step 4: Simplify right side
    507,038.85x = 193,279,496,580.54
  5. Step 5: Solve for x
    x = 193,279,496,580.54/507,038.85
  6. Step 6: Final answer
    x = 381,192.68

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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.