Home / 838,416.15-1,157,018.67-456,445.71

Finding the Fourth Proportional to 838,416.15, 1,157,018.67 and 456,445.71

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Solution

The fourth proportional to 838,416.15, 1,157,018.67 and 456,445.71 is: 629,897.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,416.15 : 1,157,018.67 = 456,445.71 : x
  2. Step 2: Convert to fraction form
    838,416.15/1,157,018.67 = 456,445.71/x
  3. Step 3: Cross multiply
    838,416.15x = 1,157,018.67 × 456,445.71
  4. Step 4: Simplify right side
    838,416.15x = 528,116,208,311.41
  5. Step 5: Solve for x
    x = 528,116,208,311.41/838,416.15
  6. Step 6: Final answer
    x = 629,897.47

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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.