Home / 563,440.79-777,303.92-372,720.35

Finding the Fourth Proportional to 563,440.79, 777,303.92 and 372,720.35

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Solution

The fourth proportional to 563,440.79, 777,303.92 and 372,720.35 is: 514,192.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,440.79 : 777,303.92 = 372,720.35 : x
  2. Step 2: Convert to fraction form
    563,440.79/777,303.92 = 372,720.35/x
  3. Step 3: Cross multiply
    563,440.79x = 777,303.92 × 372,720.35
  4. Step 4: Simplify right side
    563,440.79x = 289,716,983,368.65
  5. Step 5: Solve for x
    x = 289,716,983,368.65/563,440.79
  6. Step 6: Final answer
    x = 514,192.42

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Double scale
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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.