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Finding the Fourth Proportional to 708,651.08, 977,693.12 and 454,142.60

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Solution

The fourth proportional to 708,651.08, 977,693.12 and 454,142.60 is: 626,559.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,651.08 : 977,693.12 = 454,142.60 : x
  2. Step 2: Convert to fraction form
    708,651.08/977,693.12 = 454,142.60/x
  3. Step 3: Cross multiply
    708,651.08x = 977,693.12 × 454,142.60
  4. Step 4: Simplify right side
    708,651.08x = 444,012,095,518.91
  5. Step 5: Solve for x
    x = 444,012,095,518.91/708,651.08
  6. Step 6: Final answer
    x = 626,559.54

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.