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Finding the Fourth Proportional to 651,315.80, 976,973.70 and 617,101.40

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Solution

The fourth proportional to 651,315.80, 976,973.70 and 617,101.40 is: 925,652.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,315.80 : 976,973.70 = 617,101.40 : x
  2. Step 2: Convert to fraction form
    651,315.80/976,973.70 = 617,101.40/x
  3. Step 3: Cross multiply
    651,315.80x = 976,973.70 × 617,101.40
  4. Step 4: Simplify right side
    651,315.80x = 602,891,838,033.18
  5. Step 5: Solve for x
    x = 602,891,838,033.18/651,315.80
  6. Step 6: Final answer
    x = 925,652.10

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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.