Home / 874,509.60-1,311,764.40-402,117.60

Finding the Fourth Proportional to 874,509.60, 1,311,764.40 and 402,117.60

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Solution

The fourth proportional to 874,509.60, 1,311,764.40 and 402,117.60 is: 603,176.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,509.60 : 1,311,764.40 = 402,117.60 : x
  2. Step 2: Convert to fraction form
    874,509.60/1,311,764.40 = 402,117.60/x
  3. Step 3: Cross multiply
    874,509.60x = 1,311,764.40 × 402,117.60
  4. Step 4: Simplify right side
    874,509.60x = 527,483,552,293.44
  5. Step 5: Solve for x
    x = 527,483,552,293.44/874,509.60
  6. Step 6: Final answer
    x = 603,176.40

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Double scale
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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.