Home / 623,331.15-860,145.38-351,465.78

Finding the Fourth Proportional to 623,331.15, 860,145.38 and 351,465.78

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Solution

The fourth proportional to 623,331.15, 860,145.38 and 351,465.78 is: 484,993.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,331.15 : 860,145.38 = 351,465.78 : x
  2. Step 2: Convert to fraction form
    623,331.15/860,145.38 = 351,465.78/x
  3. Step 3: Cross multiply
    623,331.15x = 860,145.38 × 351,465.78
  4. Step 4: Simplify right side
    623,331.15x = 302,311,669,681.31
  5. Step 5: Solve for x
    x = 302,311,669,681.31/623,331.15
  6. Step 6: Final answer
    x = 484,993.69

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Double scale
Find fourth proportional to 623,332.15, 860,146.76 and 351,466.78
Similar ratio
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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.