Home / 651,931.70-977,897.55-630,158.90

Finding the Fourth Proportional to 651,931.70, 977,897.55 and 630,158.90

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Solution

The fourth proportional to 651,931.70, 977,897.55 and 630,158.90 is: 945,238.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,931.70 : 977,897.55 = 630,158.90 : x
  2. Step 2: Convert to fraction form
    651,931.70/977,897.55 = 630,158.90/x
  3. Step 3: Cross multiply
    651,931.70x = 977,897.55 × 630,158.90
  4. Step 4: Simplify right side
    651,931.70x = 616,230,844,420.70
  5. Step 5: Solve for x
    x = 616,230,844,420.70/651,931.70
  6. Step 6: Final answer
    x = 945,238.35

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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.