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Finding the Fourth Proportional to 651,468.80, 977,203.20 and 558,156.80

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Solution

The fourth proportional to 651,468.80, 977,203.20 and 558,156.80 is: 837,235.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,468.80 : 977,203.20 = 558,156.80 : x
  2. Step 2: Convert to fraction form
    651,468.80/977,203.20 = 558,156.80/x
  3. Step 3: Cross multiply
    651,468.80x = 977,203.20 × 558,156.80
  4. Step 4: Simplify right side
    651,468.80x = 545,432,611,061.76
  5. Step 5: Solve for x
    x = 545,432,611,061.76/651,468.80
  6. Step 6: Final answer
    x = 837,235.20

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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.