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Finding the Fourth Proportional to 649,430.60, 974,145.90 and 624,547.40

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Solution

The fourth proportional to 649,430.60, 974,145.90 and 624,547.40 is: 936,821.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,430.60 : 974,145.90 = 624,547.40 : x
  2. Step 2: Convert to fraction form
    649,430.60/974,145.90 = 624,547.40/x
  3. Step 3: Cross multiply
    649,430.60x = 974,145.90 × 624,547.40
  4. Step 4: Simplify right side
    649,430.60x = 608,400,289,065.66
  5. Step 5: Solve for x
    x = 608,400,289,065.66/649,430.60
  6. Step 6: Final answer
    x = 936,821.10

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Double scale
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1.5x scale

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.