Home / 634,280.36-874,460.15-503,890.64

Finding the Fourth Proportional to 634,280.36, 874,460.15 and 503,890.64

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Solution

The fourth proportional to 634,280.36, 874,460.15 and 503,890.64 is: 694,696.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,280.36 : 874,460.15 = 503,890.64 : x
  2. Step 2: Convert to fraction form
    634,280.36/874,460.15 = 503,890.64/x
  3. Step 3: Cross multiply
    634,280.36x = 874,460.15 × 503,890.64
  4. Step 4: Simplify right side
    634,280.36x = 440,632,277,746.24
  5. Step 5: Solve for x
    x = 440,632,277,746.24/634,280.36
  6. Step 6: Final answer
    x = 694,696.40

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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.