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Finding the Fourth Proportional to 559,107.80, 838,661.70 and 470,534.30

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Solution

The fourth proportional to 559,107.80, 838,661.70 and 470,534.30 is: 705,801.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,107.80 : 838,661.70 = 470,534.30 : x
  2. Step 2: Convert to fraction form
    559,107.80/838,661.70 = 470,534.30/x
  3. Step 3: Cross multiply
    559,107.80x = 838,661.70 × 470,534.30
  4. Step 4: Simplify right side
    559,107.80x = 394,619,095,946.31
  5. Step 5: Solve for x
    x = 394,619,095,946.31/559,107.80
  6. Step 6: Final answer
    x = 705,801.45

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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.