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Finding the Fourth Proportional to 527,386.50, 790,760.80 and 207,155.02

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Solution

The fourth proportional to 527,386.50, 790,760.80 and 207,155.02 is: 310,607.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,386.50 : 790,760.80 = 207,155.02 : x
  2. Step 2: Convert to fraction form
    527,386.50/790,760.80 = 207,155.02/x
  3. Step 3: Cross multiply
    527,386.50x = 790,760.80 × 207,155.02
  4. Step 4: Simplify right side
    527,386.50x = 163,810,069,339.22
  5. Step 5: Solve for x
    x = 163,810,069,339.22/527,386.50
  6. Step 6: Final answer
    x = 310,607.25

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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.