Home / 911,298.50-1,257,567.54-503,391.57

Finding the Fourth Proportional to 911,298.50, 1,257,567.54 and 503,391.57

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Solution

The fourth proportional to 911,298.50, 1,257,567.54 and 503,391.57 is: 694,666.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,298.50 : 1,257,567.54 = 503,391.57 : x
  2. Step 2: Convert to fraction form
    911,298.50/1,257,567.54 = 503,391.57/x
  3. Step 3: Cross multiply
    911,298.50x = 1,257,567.54 × 503,391.57
  4. Step 4: Simplify right side
    911,298.50x = 633,048,898,341.64
  5. Step 5: Solve for x
    x = 633,048,898,341.64/911,298.50
  6. Step 6: Final answer
    x = 694,666.90

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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.