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Finding the Fourth Proportional to 495,308.55, 683,528.76 and 291,367.83

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Solution

The fourth proportional to 495,308.55, 683,528.76 and 291,367.83 is: 402,089.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,308.55 : 683,528.76 = 291,367.83 : x
  2. Step 2: Convert to fraction form
    495,308.55/683,528.76 = 291,367.83/x
  3. Step 3: Cross multiply
    495,308.55x = 683,528.76 × 291,367.83
  4. Step 4: Simplify right side
    495,308.55x = 199,158,291,543.79
  5. Step 5: Solve for x
    x = 199,158,291,543.79/495,308.55
  6. Step 6: Final answer
    x = 402,089.35

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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.