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Finding the Fourth Proportional to 497,293.20, 745,061.40 and 480,848.40

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Solution

The fourth proportional to 497,293.20, 745,061.40 and 480,848.40 is: 720,423.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,293.20 : 745,061.40 = 480,848.40 : x
  2. Step 2: Convert to fraction form
    497,293.20/745,061.40 = 480,848.40/x
  3. Step 3: Cross multiply
    497,293.20x = 745,061.40 × 480,848.40
  4. Step 4: Simplify right side
    497,293.20x = 358,261,582,091.76
  5. Step 5: Solve for x
    x = 358,261,582,091.76/497,293.20
  6. Step 6: Final answer
    x = 720,423.25

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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.