Home / 530,289.40-731,808.18-288,582.16

Finding the Fourth Proportional to 530,289.40, 731,808.18 and 288,582.16

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Solution

The fourth proportional to 530,289.40, 731,808.18 and 288,582.16 is: 398,248.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,289.40 : 731,808.18 = 288,582.16 : x
  2. Step 2: Convert to fraction form
    530,289.40/731,808.18 = 288,582.16/x
  3. Step 3: Cross multiply
    530,289.40x = 731,808.18 × 288,582.16
  4. Step 4: Simplify right side
    530,289.40x = 211,186,785,290.07
  5. Step 5: Solve for x
    x = 211,186,785,290.07/530,289.40
  6. Step 6: Final answer
    x = 398,248.17

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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.