Home / 570,436.48-787,285.38-328,672.36

Finding the Fourth Proportional to 570,436.48, 787,285.38 and 328,672.36

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Solution

The fourth proportional to 570,436.48, 787,285.38 and 328,672.36 is: 453,615.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,436.48 : 787,285.38 = 328,672.36 : x
  2. Step 2: Convert to fraction form
    570,436.48/787,285.38 = 328,672.36/x
  3. Step 3: Cross multiply
    570,436.48x = 787,285.38 × 328,672.36
  4. Step 4: Simplify right side
    570,436.48x = 258,758,943,838.10
  5. Step 5: Solve for x
    x = 258,758,943,838.10/570,436.48
  6. Step 6: Final answer
    x = 453,615.70

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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.