Home / 692,904.60-1,038,579.30-393,528.60

Finding the Fourth Proportional to 692,904.60, 1,038,579.30 and 393,528.60

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Solution

The fourth proportional to 692,904.60, 1,038,579.30 and 393,528.60 is: 589,851.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,904.60 : 1,038,579.30 = 393,528.60 : x
  2. Step 2: Convert to fraction form
    692,904.60/1,038,579.30 = 393,528.60/x
  3. Step 3: Cross multiply
    692,904.60x = 1,038,579.30 × 393,528.60
  4. Step 4: Simplify right side
    692,904.60x = 408,710,657,917.98
  5. Step 5: Solve for x
    x = 408,710,657,917.98/692,904.60
  6. Step 6: Final answer
    x = 589,851.27

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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.