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Finding the Fourth Proportional to 488,421.40, 732,632.10 and 488,421.40

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Solution

The fourth proportional to 488,421.40, 732,632.10 and 488,421.40 is: 732,632.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,421.40 : 732,632.10 = 488,421.40 : x
  2. Step 2: Convert to fraction form
    488,421.40/732,632.10 = 488,421.40/x
  3. Step 3: Cross multiply
    488,421.40x = 732,632.10 × 488,421.40
  4. Step 4: Simplify right side
    488,421.40x = 357,833,195,966.94
  5. Step 5: Solve for x
    x = 357,833,195,966.94/488,421.40
  6. Step 6: Final answer
    x = 732,632.10

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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.