Home / 928,477.20-1,392,715.80-456,085.20

Finding the Fourth Proportional to 928,477.20, 1,392,715.80 and 456,085.20

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Solution

The fourth proportional to 928,477.20, 1,392,715.80 and 456,085.20 is: 684,127.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,477.20 : 1,392,715.80 = 456,085.20 : x
  2. Step 2: Convert to fraction form
    928,477.20/1,392,715.80 = 456,085.20/x
  3. Step 3: Cross multiply
    928,477.20x = 1,392,715.80 × 456,085.20
  4. Step 4: Simplify right side
    928,477.20x = 635,197,064,186.16
  5. Step 5: Solve for x
    x = 635,197,064,186.16/928,477.20
  6. Step 6: Final answer
    x = 684,127.80

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Double scale
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Similar ratio
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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.