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Finding the Fourth Proportional to 553,760.70, 830,122.65 and 433,751.10

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Solution

The fourth proportional to 553,760.70, 830,122.65 and 433,751.10 is: 650,220.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,760.70 : 830,122.65 = 433,751.10 : x
  2. Step 2: Convert to fraction form
    553,760.70/830,122.65 = 433,751.10/x
  3. Step 3: Cross multiply
    553,760.70x = 830,122.65 × 433,751.10
  4. Step 4: Simplify right side
    553,760.70x = 360,066,612,572.42
  5. Step 5: Solve for x
    x = 360,066,612,572.42/553,760.70
  6. Step 6: Final answer
    x = 650,220.60

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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.