Home / 685,325.04-946,045.08-515,600.88

Finding the Fourth Proportional to 685,325.04, 946,045.08 and 515,600.88

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Solution

The fourth proportional to 685,325.04, 946,045.08 and 515,600.88 is: 711,752.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,325.04 : 946,045.08 = 515,600.88 : x
  2. Step 2: Convert to fraction form
    685,325.04/946,045.08 = 515,600.88/x
  3. Step 3: Cross multiply
    685,325.04x = 946,045.08 × 515,600.88
  4. Step 4: Simplify right side
    685,325.04x = 487,781,675,767.67
  5. Step 5: Solve for x
    x = 487,781,675,767.67/685,325.04
  6. Step 6: Final answer
    x = 711,752.30

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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.