Home / 514,431.16-709,895.10-288,065.08

Finding the Fourth Proportional to 514,431.16, 709,895.10 and 288,065.08

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Solution

The fourth proportional to 514,431.16, 709,895.10 and 288,065.08 is: 397,518.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,431.16 : 709,895.10 = 288,065.08 : x
  2. Step 2: Convert to fraction form
    514,431.16/709,895.10 = 288,065.08/x
  3. Step 3: Cross multiply
    514,431.16x = 709,895.10 × 288,065.08
  4. Step 4: Simplify right side
    514,431.16x = 204,495,988,773.11
  5. Step 5: Solve for x
    x = 204,495,988,773.11/514,431.16
  6. Step 6: Final answer
    x = 397,518.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.