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Finding the Fourth Proportional to 651,738.30, 977,607.45 and 539,763.90

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Solution

The fourth proportional to 651,738.30, 977,607.45 and 539,763.90 is: 809,645.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,738.30 : 977,607.45 = 539,763.90 : x
  2. Step 2: Convert to fraction form
    651,738.30/977,607.45 = 539,763.90/x
  3. Step 3: Cross multiply
    651,738.30x = 977,607.45 × 539,763.90
  4. Step 4: Simplify right side
    651,738.30x = 527,677,209,881.06
  5. Step 5: Solve for x
    x = 527,677,209,881.06/651,738.30
  6. Step 6: Final answer
    x = 809,645.85

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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.