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Finding the Fourth Proportional to 607,124.20, 910,686.30 and 489,026.20

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Solution

The fourth proportional to 607,124.20, 910,686.30 and 489,026.20 is: 733,539.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,124.20 : 910,686.30 = 489,026.20 : x
  2. Step 2: Convert to fraction form
    607,124.20/910,686.30 = 489,026.20/x
  3. Step 3: Cross multiply
    607,124.20x = 910,686.30 × 489,026.20
  4. Step 4: Simplify right side
    607,124.20x = 445,349,460,681.06
  5. Step 5: Solve for x
    x = 445,349,460,681.06/607,124.20
  6. Step 6: Final answer
    x = 733,539.30

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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.