Home / 583,425.38-805,127.04-315,153.38

Finding the Fourth Proportional to 583,425.38, 805,127.04 and 315,153.38

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Solution

The fourth proportional to 583,425.38, 805,127.04 and 315,153.38 is: 434,911.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,425.38 : 805,127.04 = 315,153.38 : x
  2. Step 2: Convert to fraction form
    583,425.38/805,127.04 = 315,153.38/x
  3. Step 3: Cross multiply
    583,425.38x = 805,127.04 × 315,153.38
  4. Step 4: Simplify right side
    583,425.38x = 253,738,503,959.76
  5. Step 5: Solve for x
    x = 253,738,503,959.76/583,425.38
  6. Step 6: Final answer
    x = 434,911.67

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Half scale
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Double scale
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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.