Home / 865,609.07-1,194,602.37-478,416.16

Finding the Fourth Proportional to 865,609.07, 1,194,602.37 and 478,416.16

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Solution

The fourth proportional to 865,609.07, 1,194,602.37 and 478,416.16 is: 660,248.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,609.07 : 1,194,602.37 = 478,416.16 : x
  2. Step 2: Convert to fraction form
    865,609.07/1,194,602.37 = 478,416.16/x
  3. Step 3: Cross multiply
    865,609.07x = 1,194,602.37 × 478,416.16
  4. Step 4: Simplify right side
    865,609.07x = 571,517,078,582.30
  5. Step 5: Solve for x
    x = 571,517,078,582.30/865,609.07
  6. Step 6: Final answer
    x = 660,248.49

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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.