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Finding the Fourth Proportional to 566,507.80, 849,761.70 and 426,539.80

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Solution

The fourth proportional to 566,507.80, 849,761.70 and 426,539.80 is: 639,809.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,507.80 : 849,761.70 = 426,539.80 : x
  2. Step 2: Convert to fraction form
    566,507.80/849,761.70 = 426,539.80/x
  3. Step 3: Cross multiply
    566,507.80x = 849,761.70 × 426,539.80
  4. Step 4: Simplify right side
    566,507.80x = 362,457,185,565.66
  5. Step 5: Solve for x
    x = 362,457,185,565.66/566,507.80
  6. Step 6: Final answer
    x = 639,809.70

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.