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Finding the Fourth Proportional to 651,927.70, 977,891.55 and 630,154.90

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Solution

The fourth proportional to 651,927.70, 977,891.55 and 630,154.90 is: 945,232.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,927.70 : 977,891.55 = 630,154.90 : x
  2. Step 2: Convert to fraction form
    651,927.70/977,891.55 = 630,154.90/x
  3. Step 3: Cross multiply
    651,927.70x = 977,891.55 × 630,154.90
  4. Step 4: Simplify right side
    651,927.70x = 616,223,151,901.10
  5. Step 5: Solve for x
    x = 616,223,151,901.10/651,927.70
  6. Step 6: Final answer
    x = 945,232.35

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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.