Home / 570,554.33-787,389.58-315,905.54

Finding the Fourth Proportional to 570,554.33, 787,389.58 and 315,905.54

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Solution

The fourth proportional to 570,554.33, 787,389.58 and 315,905.54 is: 435,963.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,554.33 : 787,389.58 = 315,905.54 : x
  2. Step 2: Convert to fraction form
    570,554.33/787,389.58 = 315,905.54/x
  3. Step 3: Cross multiply
    570,554.33x = 787,389.58 × 315,905.54
  4. Step 4: Simplify right side
    570,554.33x = 248,740,733,218.51
  5. Step 5: Solve for x
    x = 248,740,733,218.51/570,554.33
  6. Step 6: Final answer
    x = 435,963.27

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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.