Home / 440,233.20-660,349.80-434,328.30

Finding the Fourth Proportional to 440,233.20, 660,349.80 and 434,328.30

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Solution

The fourth proportional to 440,233.20, 660,349.80 and 434,328.30 is: 651,492.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,233.20 : 660,349.80 = 434,328.30 : x
  2. Step 2: Convert to fraction form
    440,233.20/660,349.80 = 434,328.30/x
  3. Step 3: Cross multiply
    440,233.20x = 660,349.80 × 434,328.30
  4. Step 4: Simplify right side
    440,233.20x = 286,808,606,039.34
  5. Step 5: Solve for x
    x = 286,808,606,039.34/440,233.20
  6. Step 6: Final answer
    x = 651,492.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.