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Finding the Fourth Proportional to 567,664.17, 783,336.51 and 313,009.89

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Solution

The fourth proportional to 567,664.17, 783,336.51 and 313,009.89 is: 431,931.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,664.17 : 783,336.51 = 313,009.89 : x
  2. Step 2: Convert to fraction form
    567,664.17/783,336.51 = 313,009.89/x
  3. Step 3: Cross multiply
    567,664.17x = 783,336.51 × 313,009.89
  4. Step 4: Simplify right side
    567,664.17x = 245,192,074,828.08
  5. Step 5: Solve for x
    x = 245,192,074,828.08/567,664.17
  6. Step 6: Final answer
    x = 431,931.57

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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.