Home / 623,528.08-860,436.48-351,588.40

Finding the Fourth Proportional to 623,528.08, 860,436.48 and 351,588.40

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Solution

The fourth proportional to 623,528.08, 860,436.48 and 351,588.40 is: 485,173.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,528.08 : 860,436.48 = 351,588.40 : x
  2. Step 2: Convert to fraction form
    623,528.08/860,436.48 = 351,588.40/x
  3. Step 3: Cross multiply
    623,528.08x = 860,436.48 × 351,588.40
  4. Step 4: Simplify right side
    623,528.08x = 302,519,485,304.83
  5. Step 5: Solve for x
    x = 302,519,485,304.83/623,528.08
  6. Step 6: Final answer
    x = 485,173.80

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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.