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Finding the Fourth Proportional to 500,688.95, 750,856.55 and 216,368.01

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Solution

The fourth proportional to 500,688.95, 750,856.55 and 216,368.01 is: 324,475.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,688.95 : 750,856.55 = 216,368.01 : x
  2. Step 2: Convert to fraction form
    500,688.95/750,856.55 = 216,368.01/x
  3. Step 3: Cross multiply
    500,688.95x = 750,856.55 × 216,368.01
  4. Step 4: Simplify right side
    500,688.95x = 162,461,336,437.13
  5. Step 5: Solve for x
    x = 162,461,336,437.13/500,688.95
  6. Step 6: Final answer
    x = 324,475.58

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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.