Home / 920,594.87-1,270,460.35-512,696.71

Finding the Fourth Proportional to 920,594.87, 1,270,460.35 and 512,696.71

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Solution

The fourth proportional to 920,594.87, 1,270,460.35 and 512,696.71 is: 707,543.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,594.87 : 1,270,460.35 = 512,696.71 : x
  2. Step 2: Convert to fraction form
    920,594.87/1,270,460.35 = 512,696.71/x
  3. Step 3: Cross multiply
    920,594.87x = 1,270,460.35 × 512,696.71
  4. Step 4: Simplify right side
    920,594.87x = 651,360,832,714.66
  5. Step 5: Solve for x
    x = 651,360,832,714.66/920,594.87
  6. Step 6: Final answer
    x = 707,543.41

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.