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Finding the Fourth Proportional to 566,730.74, 782,088.43 and 312,081.34

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Solution

The fourth proportional to 566,730.74, 782,088.43 and 312,081.34 is: 430,672.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,730.74 : 782,088.43 = 312,081.34 : x
  2. Step 2: Convert to fraction form
    566,730.74/782,088.43 = 312,081.34/x
  3. Step 3: Cross multiply
    566,730.74x = 782,088.43 × 312,081.34
  4. Step 4: Simplify right side
    566,730.74x = 244,075,205,232.90
  5. Step 5: Solve for x
    x = 244,075,205,232.90/566,730.74
  6. Step 6: Final answer
    x = 430,672.25

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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.