Home / 649,746.65-896,290.40-377,784.50

Finding the Fourth Proportional to 649,746.65, 896,290.40 and 377,784.50

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Solution

The fourth proportional to 649,746.65, 896,290.40 and 377,784.50 is: 521,133.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,746.65 : 896,290.40 = 377,784.50 : x
  2. Step 2: Convert to fraction form
    649,746.65/896,290.40 = 377,784.50/x
  3. Step 3: Cross multiply
    649,746.65x = 896,290.40 × 377,784.50
  4. Step 4: Simplify right side
    649,746.65x = 338,604,617,081.81
  5. Step 5: Solve for x
    x = 338,604,617,081.81/649,746.65
  6. Step 6: Final answer
    x = 521,133.30

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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.