Home / 712,516.64-983,253.66-406,587.38

Finding the Fourth Proportional to 712,516.64, 983,253.66 and 406,587.38

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Solution

The fourth proportional to 712,516.64, 983,253.66 and 406,587.38 is: 561,079.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,516.64 : 983,253.66 = 406,587.38 : x
  2. Step 2: Convert to fraction form
    712,516.64/983,253.66 = 406,587.38/x
  3. Step 3: Cross multiply
    712,516.64x = 983,253.66 × 406,587.38
  4. Step 4: Simplify right side
    712,516.64x = 399,778,529,494.81
  5. Step 5: Solve for x
    x = 399,778,529,494.81/712,516.64
  6. Step 6: Final answer
    x = 561,079.57

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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.