Home / 570,156.57-786,823.07-315,531.45

Finding the Fourth Proportional to 570,156.57, 786,823.07 and 315,531.45

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Solution

The fourth proportional to 570,156.57, 786,823.07 and 315,531.45 is: 435,437.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,156.57 : 786,823.07 = 315,531.45 : x
  2. Step 2: Convert to fraction form
    570,156.57/786,823.07 = 315,531.45/x
  3. Step 3: Cross multiply
    570,156.57x = 786,823.07 × 315,531.45
  4. Step 4: Simplify right side
    570,156.57x = 248,267,422,592.89
  5. Step 5: Solve for x
    x = 248,267,422,592.89/570,156.57
  6. Step 6: Final answer
    x = 435,437.27

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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.