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Finding the Fourth Proportional to 527,210.60, 790,815.90 and 506,543.45

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Solution

The fourth proportional to 527,210.60, 790,815.90 and 506,543.45 is: 759,815.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,210.60 : 790,815.90 = 506,543.45 : x
  2. Step 2: Convert to fraction form
    527,210.60/790,815.90 = 506,543.45/x
  3. Step 3: Cross multiply
    527,210.60x = 790,815.90 × 506,543.45
  4. Step 4: Simplify right side
    527,210.60x = 400,582,614,300.86
  5. Step 5: Solve for x
    x = 400,582,614,300.86/527,210.60
  6. Step 6: Final answer
    x = 759,815.18

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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.