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Finding the Fourth Proportional to 470,683.69, 649,547.45 and 255,823.70

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Solution

The fourth proportional to 470,683.69, 649,547.45 and 255,823.70 is: 353,038.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,683.69 : 649,547.45 = 255,823.70 : x
  2. Step 2: Convert to fraction form
    470,683.69/649,547.45 = 255,823.70/x
  3. Step 3: Cross multiply
    470,683.69x = 649,547.45 × 255,823.70
  4. Step 4: Simplify right side
    470,683.69x = 166,169,631,984.57
  5. Step 5: Solve for x
    x = 166,169,631,984.57/470,683.69
  6. Step 6: Final answer
    x = 353,038.86

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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.