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Finding the Fourth Proportional to 310,225.90, 433,430.52 and 310,225.90

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Solution

The fourth proportional to 310,225.90, 433,430.52 and 310,225.90 is: 433,430.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,225.90 : 433,430.52 = 310,225.90 : x
  2. Step 2: Convert to fraction form
    310,225.90/433,430.52 = 310,225.90/x
  3. Step 3: Cross multiply
    310,225.90x = 433,430.52 × 310,225.90
  4. Step 4: Simplify right side
    310,225.90x = 134,461,373,154.47
  5. Step 5: Solve for x
    x = 134,461,373,154.47/310,225.90
  6. Step 6: Final answer
    x = 433,430.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.