Home / 651,702.20-977,553.30-385,325.60

Finding the Fourth Proportional to 651,702.20, 977,553.30 and 385,325.60

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Solution

The fourth proportional to 651,702.20, 977,553.30 and 385,325.60 is: 577,988.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,702.20 : 977,553.30 = 385,325.60 : x
  2. Step 2: Convert to fraction form
    651,702.20/977,553.30 = 385,325.60/x
  3. Step 3: Cross multiply
    651,702.20x = 977,553.30 × 385,325.60
  4. Step 4: Simplify right side
    651,702.20x = 376,676,311,854.48
  5. Step 5: Solve for x
    x = 376,676,311,854.48/651,702.20
  6. Step 6: Final answer
    x = 577,988.40

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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.