Home / 623,430.63-860,317.06-351,496.15

Finding the Fourth Proportional to 623,430.63, 860,317.06 and 351,496.15

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Solution

The fourth proportional to 623,430.63, 860,317.06 and 351,496.15 is: 485,054.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,430.63 : 860,317.06 = 351,496.15 : x
  2. Step 2: Convert to fraction form
    623,430.63/860,317.06 = 351,496.15/x
  3. Step 3: Cross multiply
    623,430.63x = 860,317.06 × 351,496.15
  4. Step 4: Simplify right side
    623,430.63x = 302,398,134,369.32
  5. Step 5: Solve for x
    x = 302,398,134,369.32/623,430.63
  6. Step 6: Final answer
    x = 485,054.98

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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.