Home / 910,395.59-1,256,158.35-523,136.19

Finding the Fourth Proportional to 910,395.59, 1,256,158.35 and 523,136.19

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Solution

The fourth proportional to 910,395.59, 1,256,158.35 and 523,136.19 is: 721,820.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,395.59 : 1,256,158.35 = 523,136.19 : x
  2. Step 2: Convert to fraction form
    910,395.59/1,256,158.35 = 523,136.19/x
  3. Step 3: Cross multiply
    910,395.59x = 1,256,158.35 × 523,136.19
  4. Step 4: Simplify right side
    910,395.59x = 657,141,893,255.69
  5. Step 5: Solve for x
    x = 657,141,893,255.69/910,395.59
  6. Step 6: Final answer
    x = 721,820.17

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Half scale
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Double scale
Find fourth proportional to 910,396.59, 1,256,159.73 and 523,137.19
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.