Home / 421,518.07-581,659.77-237,746.51

Finding the Fourth Proportional to 421,518.07, 581,659.77 and 237,746.51

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Solution

The fourth proportional to 421,518.07, 581,659.77 and 237,746.51 is: 328,070.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,518.07 : 581,659.77 = 237,746.51 : x
  2. Step 2: Convert to fraction form
    421,518.07/581,659.77 = 237,746.51/x
  3. Step 3: Cross multiply
    421,518.07x = 581,659.77 × 237,746.51
  4. Step 4: Simplify right side
    421,518.07x = 138,287,576,227.87
  5. Step 5: Solve for x
    x = 138,287,576,227.87/421,518.07
  6. Step 6: Final answer
    x = 328,070.34

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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.