Home / 897,146.40-1,238,089.68-515,249.76

Finding the Fourth Proportional to 897,146.40, 1,238,089.68 and 515,249.76

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Solution

The fourth proportional to 897,146.40, 1,238,089.68 and 515,249.76 is: 711,060.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,146.40 : 1,238,089.68 = 515,249.76 : x
  2. Step 2: Convert to fraction form
    897,146.40/1,238,089.68 = 515,249.76/x
  3. Step 3: Cross multiply
    897,146.40x = 1,238,089.68 × 515,249.76
  4. Step 4: Simplify right side
    897,146.40x = 637,925,410,478.48
  5. Step 5: Solve for x
    x = 637,925,410,478.48/897,146.40
  6. Step 6: Final answer
    x = 711,060.55

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Double scale
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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.