Home / 714,280.29-985,426.18-408,192.45

Finding the Fourth Proportional to 714,280.29, 985,426.18 and 408,192.45

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Solution

The fourth proportional to 714,280.29, 985,426.18 and 408,192.45 is: 563,145.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,280.29 : 985,426.18 = 408,192.45 : x
  2. Step 2: Convert to fraction form
    714,280.29/985,426.18 = 408,192.45/x
  3. Step 3: Cross multiply
    714,280.29x = 985,426.18 × 408,192.45
  4. Step 4: Simplify right side
    714,280.29x = 402,243,526,708.34
  5. Step 5: Solve for x
    x = 402,243,526,708.34/714,280.29
  6. Step 6: Final answer
    x = 563,145.21

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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.