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Finding the Fourth Proportional to 651,313.80, 976,970.70 and 617,099.40

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Solution

The fourth proportional to 651,313.80, 976,970.70 and 617,099.40 is: 925,649.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,313.80 : 976,970.70 = 617,099.40 : x
  2. Step 2: Convert to fraction form
    651,313.80/976,970.70 = 617,099.40/x
  3. Step 3: Cross multiply
    651,313.80x = 976,970.70 × 617,099.40
  4. Step 4: Simplify right side
    651,313.80x = 602,888,032,787.58
  5. Step 5: Solve for x
    x = 602,888,032,787.58/651,313.80
  6. Step 6: Final answer
    x = 925,649.10

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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.