Home / 653,835.24-902,695.19-518,416.20

Finding the Fourth Proportional to 653,835.24, 902,695.19 and 518,416.20

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Solution

The fourth proportional to 653,835.24, 902,695.19 and 518,416.20 is: 715,733.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,835.24 : 902,695.19 = 518,416.20 : x
  2. Step 2: Convert to fraction form
    653,835.24/902,695.19 = 518,416.20/x
  3. Step 3: Cross multiply
    653,835.24x = 902,695.19 × 518,416.20
  4. Step 4: Simplify right side
    653,835.24x = 467,971,807,566.00
  5. Step 5: Solve for x
    x = 467,971,807,566.00/653,835.24
  6. Step 6: Final answer
    x = 715,733.53

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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.