Home / 530,929.28-732,683.40-316,076.78

Finding the Fourth Proportional to 530,929.28, 732,683.40 and 316,076.78

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Solution

The fourth proportional to 530,929.28, 732,683.40 and 316,076.78 is: 436,186.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,929.28 : 732,683.40 = 316,076.78 : x
  2. Step 2: Convert to fraction form
    530,929.28/732,683.40 = 316,076.78/x
  3. Step 3: Cross multiply
    530,929.28x = 732,683.40 × 316,076.78
  4. Step 4: Simplify right side
    530,929.28x = 231,584,209,831.45
  5. Step 5: Solve for x
    x = 231,584,209,831.45/530,929.28
  6. Step 6: Final answer
    x = 436,186.55

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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.