Home / 928,013.04-1,280,747.88-520,184.16

Finding the Fourth Proportional to 928,013.04, 1,280,747.88 and 520,184.16

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Solution

The fourth proportional to 928,013.04, 1,280,747.88 and 520,184.16 is: 717,904.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,013.04 : 1,280,747.88 = 520,184.16 : x
  2. Step 2: Convert to fraction form
    928,013.04/1,280,747.88 = 520,184.16/x
  3. Step 3: Cross multiply
    928,013.04x = 1,280,747.88 × 520,184.16
  4. Step 4: Simplify right side
    928,013.04x = 666,224,760,129.58
  5. Step 5: Solve for x
    x = 666,224,760,129.58/928,013.04
  6. Step 6: Final answer
    x = 717,904.52

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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.