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Finding the Fourth Proportional to 651,199.20, 976,798.80 and 623,551.20

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Solution

The fourth proportional to 651,199.20, 976,798.80 and 623,551.20 is: 935,326.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,199.20 : 976,798.80 = 623,551.20 : x
  2. Step 2: Convert to fraction form
    651,199.20/976,798.80 = 623,551.20/x
  3. Step 3: Cross multiply
    651,199.20x = 976,798.80 × 623,551.20
  4. Step 4: Simplify right side
    651,199.20x = 609,084,063,898.56
  5. Step 5: Solve for x
    x = 609,084,063,898.56/651,199.20
  6. Step 6: Final answer
    x = 935,326.80

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Half scale
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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.