Home / 865,609.58-1,194,603.06-478,416.66

Finding the Fourth Proportional to 865,609.58, 1,194,603.06 and 478,416.66

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Solution

The fourth proportional to 865,609.58, 1,194,603.06 and 478,416.66 is: 660,249.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,609.58 : 1,194,603.06 = 478,416.66 : x
  2. Step 2: Convert to fraction form
    865,609.58/1,194,603.06 = 478,416.66/x
  3. Step 3: Cross multiply
    865,609.58x = 1,194,603.06 × 478,416.66
  4. Step 4: Simplify right side
    865,609.58x = 571,518,005,990.98
  5. Step 5: Solve for x
    x = 571,518,005,990.98/865,609.58
  6. Step 6: Final answer
    x = 660,249.17

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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.