Home / 614,234.10-921,351.15-509,258.10

Finding the Fourth Proportional to 614,234.10, 921,351.15 and 509,258.10

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Solution

The fourth proportional to 614,234.10, 921,351.15 and 509,258.10 is: 763,887.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,234.10 : 921,351.15 = 509,258.10 : x
  2. Step 2: Convert to fraction form
    614,234.10/921,351.15 = 509,258.10/x
  3. Step 3: Cross multiply
    614,234.10x = 921,351.15 × 509,258.10
  4. Step 4: Simplify right side
    614,234.10x = 469,205,536,081.82
  5. Step 5: Solve for x
    x = 469,205,536,081.82/614,234.10
  6. Step 6: Final answer
    x = 763,887.15

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Half scale
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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.