Home / 649,927.95-896,598.34-420,559.37

Finding the Fourth Proportional to 649,927.95, 896,598.34 and 420,559.37

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Solution

The fourth proportional to 649,927.95, 896,598.34 and 420,559.37 is: 580,176.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,927.95 : 896,598.34 = 420,559.37 : x
  2. Step 2: Convert to fraction form
    649,927.95/896,598.34 = 420,559.37/x
  3. Step 3: Cross multiply
    649,927.95x = 896,598.34 × 420,559.37
  4. Step 4: Simplify right side
    649,927.95x = 377,072,827,479.06
  5. Step 5: Solve for x
    x = 377,072,827,479.06/649,927.95
  6. Step 6: Final answer
    x = 580,176.35

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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.