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Finding the Fourth Proportional to 607,637.70, 911,456.55 and 465,920.10

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Solution

The fourth proportional to 607,637.70, 911,456.55 and 465,920.10 is: 698,880.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,637.70 : 911,456.55 = 465,920.10 : x
  2. Step 2: Convert to fraction form
    607,637.70/911,456.55 = 465,920.10/x
  3. Step 3: Cross multiply
    607,637.70x = 911,456.55 × 465,920.10
  4. Step 4: Simplify right side
    607,637.70x = 424,665,926,921.66
  5. Step 5: Solve for x
    x = 424,665,926,921.66/607,637.70
  6. Step 6: Final answer
    x = 698,880.15

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Double scale
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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.