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Finding the Fourth Proportional to 532,373.40, 734,686.47 and 290,666.16

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Solution

The fourth proportional to 532,373.40, 734,686.47 and 290,666.16 is: 401,125.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,373.40 : 734,686.47 = 290,666.16 : x
  2. Step 2: Convert to fraction form
    532,373.40/734,686.47 = 290,666.16/x
  3. Step 3: Cross multiply
    532,373.40x = 734,686.47 × 290,666.16
  4. Step 4: Simplify right side
    532,373.40x = 213,548,495,038.86
  5. Step 5: Solve for x
    x = 213,548,495,038.86/532,373.40
  6. Step 6: Final answer
    x = 401,125.40

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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.