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Finding the Fourth Proportional to 566,808.98, 782,160.86 and 312,160.16

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Solution

The fourth proportional to 566,808.98, 782,160.86 and 312,160.16 is: 430,761.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,808.98 : 782,160.86 = 312,160.16 : x
  2. Step 2: Convert to fraction form
    566,808.98/782,160.86 = 312,160.16/x
  3. Step 3: Cross multiply
    566,808.98x = 782,160.86 × 312,160.16
  4. Step 4: Simplify right side
    566,808.98x = 244,159,461,939.14
  5. Step 5: Solve for x
    x = 244,159,461,939.14/566,808.98
  6. Step 6: Final answer
    x = 430,761.46

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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.