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Finding the Fourth Proportional to 623,808.20, 935,712.30 and 606,312.20

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Solution

The fourth proportional to 623,808.20, 935,712.30 and 606,312.20 is: 909,468.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,808.20 : 935,712.30 = 606,312.20 : x
  2. Step 2: Convert to fraction form
    623,808.20/935,712.30 = 606,312.20/x
  3. Step 3: Cross multiply
    623,808.20x = 935,712.30 × 606,312.20
  4. Step 4: Simplify right side
    623,808.20x = 567,333,783,180.06
  5. Step 5: Solve for x
    x = 567,333,783,180.06/623,808.20
  6. Step 6: Final answer
    x = 909,468.30

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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.