Home / 651,929.20-977,893.80-630,156.40

Finding the Fourth Proportional to 651,929.20, 977,893.80 and 630,156.40

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Solution

The fourth proportional to 651,929.20, 977,893.80 and 630,156.40 is: 945,234.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,929.20 : 977,893.80 = 630,156.40 : x
  2. Step 2: Convert to fraction form
    651,929.20/977,893.80 = 630,156.40/x
  3. Step 3: Cross multiply
    651,929.20x = 977,893.80 × 630,156.40
  4. Step 4: Simplify right side
    651,929.20x = 616,226,036,590.32
  5. Step 5: Solve for x
    x = 616,226,036,590.32/651,929.20
  6. Step 6: Final answer
    x = 945,234.60

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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.