Home / 714,085.20-985,437.50-408,168.12

Finding the Fourth Proportional to 714,085.20, 985,437.50 and 408,168.12

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Solution

The fourth proportional to 714,085.20, 985,437.50 and 408,168.12 is: 563,271.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,085.20 : 985,437.50 = 408,168.12 : x
  2. Step 2: Convert to fraction form
    714,085.20/985,437.50 = 408,168.12/x
  3. Step 3: Cross multiply
    714,085.20x = 985,437.50 × 408,168.12
  4. Step 4: Simplify right side
    714,085.20x = 402,224,169,711.66
  5. Step 5: Solve for x
    x = 402,224,169,711.66/714,085.20
  6. Step 6: Final answer
    x = 563,271.96

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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.